Torodd Berstad
Publikasjoner
2024
-
Ervik, Åsmund;
Saai, Afaf;
Berstad, Torodd;
Meyer, Ole;
Tsuji, Takuma;
Oku, Tatsuya.
(2024)
Numerical modelling of the solid- and fluid dynamic phenomena
controlling the ring plate valve motion and tumbling.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2023
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Dæhli, Lars Edvard Blystad;
Johnsen, Joakim;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture.
(2023)
An experimental–numerical study on the evolution of the Taylor–Quinney coefficient with plastic deformation in metals.
Mechanics of materials (Print)
Vitenskapelig artikkel
-
Xu, Jianbin;
Hopperstad, Odd Sture;
Holmedal, Bjørn;
Berstad, Torodd;
Manik, Tomas;
Marthinsen, Knut.
(2023)
On the spatio-temporal characteristics of the Portevin-Le Chatelier effect in aluminium alloy AA5182: An experimental and numerical study.
International journal of plasticity
Vitenskapelig artikkel
-
Brekken, Kristoffer Aune;
Bakk, Maria Sagberg;
Dey, Sumita;
Berstad, Torodd;
Reyes, Aase;
Børvik, Tore.
(2023)
On the ballistic perforation resistance of a sandwich structure with aluminium skins and aluminium foam core.
Materials Letters
Vitenskapelig artikkel
2022
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Færgestad, Rannveig Marie;
Holmen, Jens Kristian;
Berstad, Torodd;
Cardone, Tiziana;
Ford, Kevin Anthony;
Børvik, Tore.
(2022)
Coupled finite element-discrete element method (FEM/DEM) for modelling hypervelocity impacts.
Acta Astronautica
Vitenskapelig artikkel
-
Elveli, Benjamin Stavnar;
Berstad, Torodd;
Børvik, Tore;
Aune, Vegard.
(2022)
Performance of thin blast-loaded steel plates after ballistic impact from small-arms projectiles.
International Journal of Impact Engineering
Vitenskapelig artikkel
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Elveli, Benjamin Stavnar;
Vestrum, Ole;
Hauge, Knut Ove;
Berstad, Torodd;
Børvik, Tore;
Aune, Vegard.
(2022)
Thin steel plates exposed to combined ballistic impact and partially confined airblast loading.
Engineering Failure Analysis
Vitenskapelig artikkel
-
Ervik, Åsmund;
Saai, Afaf;
Berstad, Torodd;
Meyer, Ole;
Tsuji, Takuma;
Oku, Tatsuya.
(2022)
Coupled fluid-solid modelling of the valve dynamics in reciprocating compressors.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2021
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Holmström, Petter Henrik;
Clausen, Arild Holm;
Berstad, Torodd;
Morin, David;
Hopperstad, Odd Sture.
(2021)
A pragmatic orthotropic elasticity-based damage model with spatially distributed properties applied to short glass-fibre reinforced polymers.
International Journal of Solids and Structures
Vitenskapelig artikkel
-
Ervik, Åsmund;
Saai, Afaf;
Berstad, Torodd;
Meyer, Ole;
Tsuji, Takuma;
Oku, Tatsuya.
(2021)
Modelling the dynamics of ring plate valves in reciprocating compressors using coupled CFD-FEM simulations.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2020
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Brekken, Kristoffer Aune;
Reyes, Aase Gavina Roberg;
Berstad, Torodd;
Langseth, Magnus;
Børvik, Tore.
(2020)
Sandwich panels with polymeric foam cores exposed to blast loading: An experimental and numerical investigation.
Applied Sciences
Vitenskapelig artikkel
2017
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Gruben, Gaute;
Sølvernes, Sindre Hellem;
Berstad, Torodd;
Morin, David;
Hopperstad, Odd Sture;
Langseth, Magnus.
(2017)
Low-velocity impact behaviour and failure of stiffened steel plates.
Marine Structures
Vitenskapelig artikkel
2014
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Saai, Afaf;
Svenum, I.-H.;
Kane, Pascal-Alexandre;
Friis, Jesper;
Berstad, Torodd.
(2014)
Multi-scale modeling of WC-Co drill bits material with density functional theory and crystal elasticity model.
Procedia Materials Science
Vitenskapelig artikkel
-
Ognedal, Anne Serine;
Clausen, Arild Holm;
Berstad, Torodd;
Seelig, Thomas;
Hopperstad, Odd Sture.
(2014)
Void nucleation and growth in mineral-filled PVC - An experimental and numerical study.
International Journal of Solids and Structures
Vitenskapelig artikkel
2013
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Aursand, Eskil;
Aursand, Peder;
Berstad, Torodd;
Dørum, Cato;
Hammer, Morten;
Munkejord, Svend Tollak.
(2013)
CO2 pipeline integrity: A coupled fluid-structure model using a reference equation of state for CO2.
Energy Procedia
Vitenskapelig artikkel
2012
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Nordhagen, Håkon Ottar;
Kragset, Steinar;
Berstad, Torodd;
Morin, Alexandre;
Dørum, Cato;
Munkejord, Svend Tollak.
(2012)
A new coupled fluid-structure modeling methodology for running ductile fracture.
Computers & structures
Vitenskapelig artikkel
2011
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Kane, Alexandre;
Børvik, Tore;
Berstad, Torodd;
Benallal, A;
Hopperstad, Odd Sture.
(2011)
Failure criteria with unilateral conditions for simulation of plate perforation.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Benallal, A;
Berstad, Torodd;
Børvik, Tore;
des Codes, RN;
Hopperstad, Odd Sture.
(2011)
Computational aspects in presence of negative strain-rate sensitivity with application to aluminium alloys exhibiting the Portevin-Le Chatelier effect.
Modelling and Simulation in Materials Science and Engineering
Vitenskapelig artikkel
-
Berstad, Torodd;
Dørum, Cato;
Jakobsen, Jana Poplsteinova;
Kragset, Steinar;
Li, Hailong;
Lund, Halvor.
(2011)
CO2 pipeline integrity: A new evaluation methodology.
Energy Procedia
Vitenskapelig artikkel
2010
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Lademo, Odd-Geir;
Engler, Olaf;
Aegerter, J;
Berstad, Torodd;
Benallal, A;
Hopperstad, Odd Sture.
(2010)
Strain-Rate Sensitivity of Aluminum Alloys AA1200 and AA3103.
Journal of engineering materials and technology
Vitenskapelig artikkel
-
Benallal, A;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture.
(2010)
Uniqueness, loss of ellipticity and localization for the time-discretized, rate-dependent boundary value problem with softening.
International Journal for Numerical Methods in Engineering
Vitenskapelig artikkel
-
Polanco-Loria, Mario A.;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
Constitutive model for thermoplastics with structural applications.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Clausen, Arild Holm;
Hovden, Martin Thuve;
Polanco-Loria, Mario;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
Constitutive nodel for thermoplastics - calibration and validation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Kane, Alexandre;
Østby, Erling;
Lademo, Odd-Geir;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
EFFECTS OF THE YIELD CRITERION ON PREDICTED FRACTURE RESPONSES OF PIPELINES SUBJECTED TO LARGE PLASTIC DEFORMATION WITH AND WITHOUT INTERNAL PRESSURE.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Dørum, Cato;
Lademo, Odd-Geir;
Myhr, Ole Runar;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
Finite element analysis of plastic failure in heat-affected zone of welded aluminium connections.
Computers & structures
Vitenskapelig artikkel
2009
-
Chen, Yan;
Hopperstad, Odd Sture;
Clausen, Arild Holm;
Børvik, Tore;
Berstad, Torodd.
(2009)
Finite element analyses of Charpy tests on extruded aluminium alloys.
EDP Sciences
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Clausen, Arild Holm;
Polanco-Loria, Mario A.;
Moura, Rafael Traldi;
Alves, Marcilio;
Berstad, Torodd;
Langseth, Magnus.
(2009)
Polymer plates subjected to impact: Experimental tests and numerical simulations.
EDP Sciences
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Lademo, Odd-Geir.
(2009)
Forming limit diagrams with an FE-based approach for sheets under non-proportional loading.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Polanco-Loria, Mario;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2009)
A Constitutive Model for Thermoplastics Intended for Structural Applications.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Olden, Vigdis;
Thaulow, Christian;
Berstad, Torodd;
Østby, Erling.
(2009)
Prediction of Hydrogen Embrittlement in 25% CR Duplex Stainless Steel Based on Cohesive Zone Simulation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Olden, Vigdis;
Thaulow, Christian;
Johnsen, Roy;
Østby, Erling;
Berstad, Torodd.
(2009)
Influence of hydrogen from cathodic protection on the fracture susceptibility of 25%Cr duplex stainless steel - Constant load SENT testing and FE-modelling using hydrogen influenced cohesive zone elements.
Engineering Fracture Mechanics
Vitenskapelig artikkel
-
Dørum, Cato;
Dispinar, D.;
Hopperstad, Odd Sture;
Berstad, Torodd.
(2009)
A probabilistic approach for modelling of fracture in magnesium die-castings.
La Metallurgia Italiana
Vitenskapelig artikkel
-
Dumoulin, Stephane C.;
Hopperstad, Odd Sture;
Berstad, Torodd.
(2009)
Investigation of integration algorithms for rate-dependent crystal plasticity using explicit finite element codes.
Computational Materials Science
Vitenskapelig artikkel
-
Dørum, Cato;
Hopperstad, Odd Sture;
Berstad, Torodd;
Dispinar, D.
(2009)
Numerical modelling of magnesium die-castings using stochastic fracture parameters.
Engineering Fracture Mechanics
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Engler, Olaf;
Keller, S;
Berstad, Torodd;
Pedersen, Ketill Olav;
Hopperstad, Odd Sture.
(2009)
Identification and validation of constitutive model and fracture criterion for AlMgSi alloy with application to sheet forming.
Materials & design
Vitenskapelig artikkel
2008
-
Benallal, Ahmed;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture;
Nogueira de Codes, R.
(2008)
On the Measurement and Evaluation of the Width of Portevin–Le Chatelier Deformation Bands with Application to AA5083-H116 Aluminium Alloy.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Polanco-Loria, Mario;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2008)
A Constitutive Model for Thermoplastics in Structural Applications.
Annet
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Dørum, Cato;
Hopperstad, Odd Sture;
Berstad, Torodd;
Laukli, Hans Ivar.
(2008)
A probabilistic approach for modelling fracture in die-castings.
Annet
-
Dørum, Cato;
Dispinar, D;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2008)
A probabilistic approach for modelling of fracture in magnesium die-castings.
Annet
-
Polanco-Loria, Mario;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2008)
A modified Boyce-Raghava model for constitutive modelling of thermoplastics.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Benallal, A;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture;
Koutiri, I;
de Codes, RN.
(2008)
An experimental and numerical investigation of the behaviour of AA5083 aluminium alloy in presence of the Portevin-Le Chatelier effect.
International journal of plasticity
Vitenskapelig artikkel
-
Pedersen, Ketill Olav;
Lademo, Odd-Geir;
Berstad, Torodd;
Furu, Trond;
Hopperstad, Odd Sture.
(2008)
Influence of texture and grain structure on strain localisation and formability for AlMgSi alloys.
Journal of Materials Processing Technology
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Eriksson, Magnus;
Tryland, Tore Helge;
Furu, Trond;
Hopperstad, Odd Sture.
(2008)
A model for process-based crash simulation.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Polanco-Loria, Mario A.;
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd.
(2008)
Numerical predictions of ballistic limits for concrete slabs using a modified version of the HJC concrete model.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Pedersen, Ketill Olav;
Berstad, Torodd;
Furu, Trond;
Hopperstad, Odd Sture.
(2008)
An experimental and numerical study on the formability of textured AlZnMg alloys.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Olden, Vigdis;
Thaulow, Christian;
Johnsen, Roy;
Østby, Erling;
Berstad, Torodd.
(2008)
Application of hydrogen influenced cohesive laws in the prediction of hydrogen induced stress cracking in 25%Cr duplex stainless steel.
Engineering Fracture Mechanics
Vitenskapelig artikkel
-
Benallal, Ahmed;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture;
Nogueira de Codes, R.
(2008)
Effects of strain rate on the characteristics of PLC deformation bands for AA5083-H116 aluminium alloy.
Philosophical Magazine
Vitenskapelig artikkel
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Lademo, Odd-Geir.
(2008)
Prediction of necking for two aluminum alloys under non-proportional loading by using an FE-based approach.
International Journal of Material Forming
Vitenskapelig artikkel
2007
-
Chen, Yan;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Clausen, Arild Holm;
Berstad, Torodd;
Langseth, Magnus.
(2007)
Preliminary simulations of the instrumented Charpy V-notch impact test.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd;
Lademo, Odd-Geir;
Benallal, Ahmed.
(2007)
A numerical study on the influence of the Portevin-Le Chatelier effect on necking in an aluminium alloy.
Modelling and Simulation in Materials Science and Engineering
Vitenskapelig artikkel
2006
-
Hirsch, J;
Holmedal, Bjørn;
Nes, Erik Aasmund;
Marthinsen, Knut;
Engler, Olaf;
Abtahi, Shahriar.
(2006)
Virtual Fabrication of Aluminium Products.
John Wiley & Sons
John Wiley & Sons
Fagbok
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd;
Lademo, Odd-Geir;
Benallal, Ahmed.
(2006)
A preliminary numerical study on the influence of PLC on formability of aluminium alloys.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Berstad, Torodd;
Hopperstad, Odd Sture;
Clausen, Arild Holm;
Ilstad, Håvar;
Melve, Bjørn.
(2006)
Implementation of Constitutive Model for Thermoplastics with some Preliminary Results.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Furu, Trond;
Dons, Anne Lise;
Berstad, Torodd;
Holmedal, Bjørn;
Marthinsen, Knut.
(2006)
Through Process Modeling of Extrusion: Evolution in Microstructure and Mechanical Properties through the whole Process Chain from As Cast and Homogenized Condition to Forming of Profiles.
John Wiley & Sons
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Clausen, Arild Holm;
Auestad, Trond;
Berstad, T;
Børvik, Tore;
Langseth, Magnus.
(2006)
High-temperature tests on aluminium in a split-Hopkinson bar - Experimental set-up and numerical predictions.
Journal de Physique IV : Colloque
Vitenskapelig artikkel
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, T;
Benallal, A.
(2006)
Finite element simulations of the Portevin-Le Chatelier effect in aluminium alloy.
Journal de Physique IV : Colloque
Vitenskapelig artikkel
-
Kokkula, Satyanarayana;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Berstad, T;
Langseth, Magnus.
(2006)
Offset impact behaviour of bumper beam-longitudinal systems: numerical simulations.
International Journal of Crashworthiness
Vitenskapelig artikkel
-
Benallal, Ahmed;
Berstad, Torodd;
Børvik, Tore;
Clausen, Arild Holm;
Hopperstad, Odd Sture.
(2006)
Dynamic strain aging and related instabilities: experimental, theoretical and numerical aspects.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Hanssen, Arve Grønsund;
Girard, Y;
Olovsson, L;
Berstad, T;
Langseth, Magnus.
(2006)
A numerical model for bird strike of aluminium foam-based sandwich panels.
International Journal of Impact Engineering
Vitenskapelig artikkel
2005
-
Berstad, Torodd;
Furu, Trond;
Holmedal, Bjørn;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Nes, Erik Aasmund.
(2005)
"FEM and a microstructure based work hardening model used to calculate forming limit curves".
International Journal of Forming Processes
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2005)
Prediction of plastic instability and fracture in extruded aluminium alloys in shell element analysis.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Fjeldbo, Snorre Kjørstad;
Holmedal, Bjørn;
Lademo, Odd-Geir;
Bjerkaas, Hans;
Støren, Sigurd;
Roven, Hans Jørgen.
(2005)
A numerical study on the onset of plastic instability in extruded materials with strong through-thickness texture variation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd;
Clausen, Arild Holm;
Benallal, Ahmed.
(2005)
A hypoelastic-viscoplastic constitutive model in LS-DYNA for dynamic strain aging – the McCormick model.
Institutt for konstruksjonsteknikk, NTNU
Rapport
-
Lademo, Odd-Geir;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2005)
Prediction of plastic instability in extruded aluminium alloys using shell analysis and a coupled model of elasto-plasticity and damage.
Journal of Materials Processing Technology
Vitenskapelig artikkel
-
Børvik, Tore;
Clausen, Arild Holm;
Eriksson, Magnus;
Berstad, Torodd;
Hopperstad, Odd Sture;
Langseth, Magnus.
(2005)
Experimental and numerical study on the perforation of AA6005-T6 panels.
International Journal of Impact Engineering
Vitenskapelig artikkel
2004
-
Berstad, Torodd;
Furu, Trond;
Holmedal, Bjørn;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Nes, Erik Aasmund.
(2004)
FEM and a microstructure based work hardening model used to calculate forming limit curves.
Esaform Conference on Material Forming. ESAFORM : Proceedings
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Eriksson, Magnus;
Tryland, Tore;
Furu, Trond;
Hopperstad, Odd Sture.
(2004)
"A model for process-based crash simulation".
International Journal of Crashworthiness
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Pedersen, Ketill Olav;
Hopperstad, Odd Sture.
(2004)
A numerical tool for formability analysis of aluminium alloys: Part II.
Steel Grips - Journal of Steel and Related Materials
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Pedersen, Ketill Olav;
Hopperstad, Odd Sture.
(2004)
A numerical tool for formability analysis of aluminium alloys.
Steel Grips - Journal of Steel and Related Materials
Vitenskapelig artikkel
-
Furu, Trond;
Johansen, Arve;
Sæter, Jan Anders;
Dons, Anne Lise;
Pedersen, Ketill Olav;
Berstad, Torodd.
(2004)
Through process modeling of extrusion: Evolution in microstructure and mechanical properties through the hole process chain from as cast and homogenized condition to forming of profiles.
Aluminium
Vitenskapelig artikkel
2003
-
Børvik, Tore;
Hopperstad, Odd Sture;
Berstad, Torodd.
(2003)
On the Influence of Stress Triaxiality and Strain Rate on the Behaviour of a structural Steel. Part II. Numerical study.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Hanssen, Arve Grønsund;
Langseth, Magnus.
(2003)
Constitutive modeling of aluminum foam including fracture and statistical variation of density.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
2002
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2002)
Implementation of a material model for aluminum foam in LS-DYNA.
Department of Structural Engineering
Rapport
-
Børvik, Tore;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2002)
Perforation of 12 mm Thick Steel Plates by 20 mm diameter Projectiles with Blunt, Hemispherical and Conical Noses, Part II: Numerical Simulations.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Hildrum, Hilde Giæver;
Berstad, Torodd;
Lademo, Odd-Geir;
Malo, Kjell A.;
Hopperstad, Odd Sture.
(2002)
An Introductory FEM Study of Strain Localisation in Welded Aluminium Structures. Part II: Fiilet Weld.
[Mangler utgivernavn]
Rapport
2001
-
Børvik, Tore;
Hopperstad, Odd Sture;
Berstad, T;
Langseth, Magnus.
(2001)
Numerical Simulation of Plugging Failure in Ballistic Penetration.
International Journal of Solids and Structures
Vitenskapelig artikkel
-
Børvik, Tore;
Langseth, Magnus;
Hopperstad, Odd Sture;
Berstad, T.
(2001)
A Computational Model of Viscoplasticity and Ductile Damage for Impact and Penetration.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
1999
-
Langseth, Magnus;
Hopperstad, Odd Sture;
Berstad, Torodd.
(1999)
Crashworthiness of Aluminium Extrusions: Validation of Numerical Simulations, Effect of Mass Ratio and Impact Velocity.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Langseth, Magnus;
Hopperstad, Odd Sture;
Berstad, Torodd.
(1999)
Impact loading of plates. Validation of numerical simulations by testing.
International Journal of Offshore and Polar Engineering
Vitenskapelig artikkel
-
Mathisen, Kjell Magne;
Hopperstad, Odd Sture;
Okstad, Knut Morten;
Berstad, Torodd.
(1999)
Error Estimation and Adaptivity in Explicit Nonlinear Finite Element Simulation of Quasi-Static Problems.
Computers & structures
Vitenskapelig artikkel
1998
-
Hopperstad, Odd Sture;
Berstad, Torodd;
Ilstad, Håvar;
Lademo, Odd-Geir;
Langseth, Magnus.
(1998)
Effects of the Yield Criterion on Local Deformations in Numerical Simulation of Profile Forming.
Journal of Materials Processing Technology
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Dæhli, Lars Edvard Blystad;
Johnsen, Joakim;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture.
(2023)
An experimental–numerical study on the evolution of the Taylor–Quinney coefficient with plastic deformation in metals.
Mechanics of materials (Print)
Vitenskapelig artikkel
-
Xu, Jianbin;
Hopperstad, Odd Sture;
Holmedal, Bjørn;
Berstad, Torodd;
Manik, Tomas;
Marthinsen, Knut.
(2023)
On the spatio-temporal characteristics of the Portevin-Le Chatelier effect in aluminium alloy AA5182: An experimental and numerical study.
International journal of plasticity
Vitenskapelig artikkel
-
Brekken, Kristoffer Aune;
Bakk, Maria Sagberg;
Dey, Sumita;
Berstad, Torodd;
Reyes, Aase;
Børvik, Tore.
(2023)
On the ballistic perforation resistance of a sandwich structure with aluminium skins and aluminium foam core.
Materials Letters
Vitenskapelig artikkel
-
Færgestad, Rannveig Marie;
Holmen, Jens Kristian;
Berstad, Torodd;
Cardone, Tiziana;
Ford, Kevin Anthony;
Børvik, Tore.
(2022)
Coupled finite element-discrete element method (FEM/DEM) for modelling hypervelocity impacts.
Acta Astronautica
Vitenskapelig artikkel
-
Elveli, Benjamin Stavnar;
Berstad, Torodd;
Børvik, Tore;
Aune, Vegard.
(2022)
Performance of thin blast-loaded steel plates after ballistic impact from small-arms projectiles.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Elveli, Benjamin Stavnar;
Vestrum, Ole;
Hauge, Knut Ove;
Berstad, Torodd;
Børvik, Tore;
Aune, Vegard.
(2022)
Thin steel plates exposed to combined ballistic impact and partially confined airblast loading.
Engineering Failure Analysis
Vitenskapelig artikkel
-
Holmström, Petter Henrik;
Clausen, Arild Holm;
Berstad, Torodd;
Morin, David;
Hopperstad, Odd Sture.
(2021)
A pragmatic orthotropic elasticity-based damage model with spatially distributed properties applied to short glass-fibre reinforced polymers.
International Journal of Solids and Structures
Vitenskapelig artikkel
-
Brekken, Kristoffer Aune;
Reyes, Aase Gavina Roberg;
Berstad, Torodd;
Langseth, Magnus;
Børvik, Tore.
(2020)
Sandwich panels with polymeric foam cores exposed to blast loading: An experimental and numerical investigation.
Applied Sciences
Vitenskapelig artikkel
-
Gruben, Gaute;
Sølvernes, Sindre Hellem;
Berstad, Torodd;
Morin, David;
Hopperstad, Odd Sture;
Langseth, Magnus.
(2017)
Low-velocity impact behaviour and failure of stiffened steel plates.
Marine Structures
Vitenskapelig artikkel
-
Saai, Afaf;
Svenum, I.-H.;
Kane, Pascal-Alexandre;
Friis, Jesper;
Berstad, Torodd.
(2014)
Multi-scale modeling of WC-Co drill bits material with density functional theory and crystal elasticity model.
Procedia Materials Science
Vitenskapelig artikkel
-
Ognedal, Anne Serine;
Clausen, Arild Holm;
Berstad, Torodd;
Seelig, Thomas;
Hopperstad, Odd Sture.
(2014)
Void nucleation and growth in mineral-filled PVC - An experimental and numerical study.
International Journal of Solids and Structures
Vitenskapelig artikkel
-
Aursand, Eskil;
Aursand, Peder;
Berstad, Torodd;
Dørum, Cato;
Hammer, Morten;
Munkejord, Svend Tollak.
(2013)
CO2 pipeline integrity: A coupled fluid-structure model using a reference equation of state for CO2.
Energy Procedia
Vitenskapelig artikkel
-
Nordhagen, Håkon Ottar;
Kragset, Steinar;
Berstad, Torodd;
Morin, Alexandre;
Dørum, Cato;
Munkejord, Svend Tollak.
(2012)
A new coupled fluid-structure modeling methodology for running ductile fracture.
Computers & structures
Vitenskapelig artikkel
-
Kane, Alexandre;
Børvik, Tore;
Berstad, Torodd;
Benallal, A;
Hopperstad, Odd Sture.
(2011)
Failure criteria with unilateral conditions for simulation of plate perforation.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Benallal, A;
Berstad, Torodd;
Børvik, Tore;
des Codes, RN;
Hopperstad, Odd Sture.
(2011)
Computational aspects in presence of negative strain-rate sensitivity with application to aluminium alloys exhibiting the Portevin-Le Chatelier effect.
Modelling and Simulation in Materials Science and Engineering
Vitenskapelig artikkel
-
Berstad, Torodd;
Dørum, Cato;
Jakobsen, Jana Poplsteinova;
Kragset, Steinar;
Li, Hailong;
Lund, Halvor.
(2011)
CO2 pipeline integrity: A new evaluation methodology.
Energy Procedia
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Engler, Olaf;
Aegerter, J;
Berstad, Torodd;
Benallal, A;
Hopperstad, Odd Sture.
(2010)
Strain-Rate Sensitivity of Aluminum Alloys AA1200 and AA3103.
Journal of engineering materials and technology
Vitenskapelig artikkel
-
Benallal, A;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture.
(2010)
Uniqueness, loss of ellipticity and localization for the time-discretized, rate-dependent boundary value problem with softening.
International Journal for Numerical Methods in Engineering
Vitenskapelig artikkel
-
Polanco-Loria, Mario A.;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
Constitutive model for thermoplastics with structural applications.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Dørum, Cato;
Lademo, Odd-Geir;
Myhr, Ole Runar;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
Finite element analysis of plastic failure in heat-affected zone of welded aluminium connections.
Computers & structures
Vitenskapelig artikkel
-
Olden, Vigdis;
Thaulow, Christian;
Johnsen, Roy;
Østby, Erling;
Berstad, Torodd.
(2009)
Influence of hydrogen from cathodic protection on the fracture susceptibility of 25%Cr duplex stainless steel - Constant load SENT testing and FE-modelling using hydrogen influenced cohesive zone elements.
Engineering Fracture Mechanics
Vitenskapelig artikkel
-
Dørum, Cato;
Dispinar, D.;
Hopperstad, Odd Sture;
Berstad, Torodd.
(2009)
A probabilistic approach for modelling of fracture in magnesium die-castings.
La Metallurgia Italiana
Vitenskapelig artikkel
-
Dumoulin, Stephane C.;
Hopperstad, Odd Sture;
Berstad, Torodd.
(2009)
Investigation of integration algorithms for rate-dependent crystal plasticity using explicit finite element codes.
Computational Materials Science
Vitenskapelig artikkel
-
Dørum, Cato;
Hopperstad, Odd Sture;
Berstad, Torodd;
Dispinar, D.
(2009)
Numerical modelling of magnesium die-castings using stochastic fracture parameters.
Engineering Fracture Mechanics
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Engler, Olaf;
Keller, S;
Berstad, Torodd;
Pedersen, Ketill Olav;
Hopperstad, Odd Sture.
(2009)
Identification and validation of constitutive model and fracture criterion for AlMgSi alloy with application to sheet forming.
Materials & design
Vitenskapelig artikkel
-
Benallal, A;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture;
Koutiri, I;
de Codes, RN.
(2008)
An experimental and numerical investigation of the behaviour of AA5083 aluminium alloy in presence of the Portevin-Le Chatelier effect.
International journal of plasticity
Vitenskapelig artikkel
-
Pedersen, Ketill Olav;
Lademo, Odd-Geir;
Berstad, Torodd;
Furu, Trond;
Hopperstad, Odd Sture.
(2008)
Influence of texture and grain structure on strain localisation and formability for AlMgSi alloys.
Journal of Materials Processing Technology
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Eriksson, Magnus;
Tryland, Tore Helge;
Furu, Trond;
Hopperstad, Odd Sture.
(2008)
A model for process-based crash simulation.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Polanco-Loria, Mario A.;
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd.
(2008)
Numerical predictions of ballistic limits for concrete slabs using a modified version of the HJC concrete model.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Pedersen, Ketill Olav;
Berstad, Torodd;
Furu, Trond;
Hopperstad, Odd Sture.
(2008)
An experimental and numerical study on the formability of textured AlZnMg alloys.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Olden, Vigdis;
Thaulow, Christian;
Johnsen, Roy;
Østby, Erling;
Berstad, Torodd.
(2008)
Application of hydrogen influenced cohesive laws in the prediction of hydrogen induced stress cracking in 25%Cr duplex stainless steel.
Engineering Fracture Mechanics
Vitenskapelig artikkel
-
Benallal, Ahmed;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture;
Nogueira de Codes, R.
(2008)
Effects of strain rate on the characteristics of PLC deformation bands for AA5083-H116 aluminium alloy.
Philosophical Magazine
Vitenskapelig artikkel
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Lademo, Odd-Geir.
(2008)
Prediction of necking for two aluminum alloys under non-proportional loading by using an FE-based approach.
International Journal of Material Forming
Vitenskapelig artikkel
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd;
Lademo, Odd-Geir;
Benallal, Ahmed.
(2007)
A numerical study on the influence of the Portevin-Le Chatelier effect on necking in an aluminium alloy.
Modelling and Simulation in Materials Science and Engineering
Vitenskapelig artikkel
-
Clausen, Arild Holm;
Auestad, Trond;
Berstad, T;
Børvik, Tore;
Langseth, Magnus.
(2006)
High-temperature tests on aluminium in a split-Hopkinson bar - Experimental set-up and numerical predictions.
Journal de Physique IV : Colloque
Vitenskapelig artikkel
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, T;
Benallal, A.
(2006)
Finite element simulations of the Portevin-Le Chatelier effect in aluminium alloy.
Journal de Physique IV : Colloque
Vitenskapelig artikkel
-
Kokkula, Satyanarayana;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Berstad, T;
Langseth, Magnus.
(2006)
Offset impact behaviour of bumper beam-longitudinal systems: numerical simulations.
International Journal of Crashworthiness
Vitenskapelig artikkel
-
Benallal, Ahmed;
Berstad, Torodd;
Børvik, Tore;
Clausen, Arild Holm;
Hopperstad, Odd Sture.
(2006)
Dynamic strain aging and related instabilities: experimental, theoretical and numerical aspects.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Hanssen, Arve Grønsund;
Girard, Y;
Olovsson, L;
Berstad, T;
Langseth, Magnus.
(2006)
A numerical model for bird strike of aluminium foam-based sandwich panels.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Berstad, Torodd;
Furu, Trond;
Holmedal, Bjørn;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Nes, Erik Aasmund.
(2005)
"FEM and a microstructure based work hardening model used to calculate forming limit curves".
International Journal of Forming Processes
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2005)
Prediction of plastic instability in extruded aluminium alloys using shell analysis and a coupled model of elasto-plasticity and damage.
Journal of Materials Processing Technology
Vitenskapelig artikkel
-
Børvik, Tore;
Clausen, Arild Holm;
Eriksson, Magnus;
Berstad, Torodd;
Hopperstad, Odd Sture;
Langseth, Magnus.
(2005)
Experimental and numerical study on the perforation of AA6005-T6 panels.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Berstad, Torodd;
Furu, Trond;
Holmedal, Bjørn;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Nes, Erik Aasmund.
(2004)
FEM and a microstructure based work hardening model used to calculate forming limit curves.
Esaform Conference on Material Forming. ESAFORM : Proceedings
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Eriksson, Magnus;
Tryland, Tore;
Furu, Trond;
Hopperstad, Odd Sture.
(2004)
"A model for process-based crash simulation".
International Journal of Crashworthiness
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Pedersen, Ketill Olav;
Hopperstad, Odd Sture.
(2004)
A numerical tool for formability analysis of aluminium alloys: Part II.
Steel Grips - Journal of Steel and Related Materials
Vitenskapelig artikkel
-
Lademo, Odd-Geir;
Berstad, Torodd;
Pedersen, Ketill Olav;
Hopperstad, Odd Sture.
(2004)
A numerical tool for formability analysis of aluminium alloys.
Steel Grips - Journal of Steel and Related Materials
Vitenskapelig artikkel
-
Furu, Trond;
Johansen, Arve;
Sæter, Jan Anders;
Dons, Anne Lise;
Pedersen, Ketill Olav;
Berstad, Torodd.
(2004)
Through process modeling of extrusion: Evolution in microstructure and mechanical properties through the hole process chain from as cast and homogenized condition to forming of profiles.
Aluminium
Vitenskapelig artikkel
-
Børvik, Tore;
Hopperstad, Odd Sture;
Berstad, Torodd.
(2003)
On the Influence of Stress Triaxiality and Strain Rate on the Behaviour of a structural Steel. Part II. Numerical study.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Hanssen, Arve Grønsund;
Langseth, Magnus.
(2003)
Constitutive modeling of aluminum foam including fracture and statistical variation of density.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Børvik, Tore;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2002)
Perforation of 12 mm Thick Steel Plates by 20 mm diameter Projectiles with Blunt, Hemispherical and Conical Noses, Part II: Numerical Simulations.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Børvik, Tore;
Hopperstad, Odd Sture;
Berstad, T;
Langseth, Magnus.
(2001)
Numerical Simulation of Plugging Failure in Ballistic Penetration.
International Journal of Solids and Structures
Vitenskapelig artikkel
-
Børvik, Tore;
Langseth, Magnus;
Hopperstad, Odd Sture;
Berstad, T.
(2001)
A Computational Model of Viscoplasticity and Ductile Damage for Impact and Penetration.
European Journal of Mechanics. A, Solids
Vitenskapelig artikkel
-
Langseth, Magnus;
Hopperstad, Odd Sture;
Berstad, Torodd.
(1999)
Crashworthiness of Aluminium Extrusions: Validation of Numerical Simulations, Effect of Mass Ratio and Impact Velocity.
International Journal of Impact Engineering
Vitenskapelig artikkel
-
Langseth, Magnus;
Hopperstad, Odd Sture;
Berstad, Torodd.
(1999)
Impact loading of plates. Validation of numerical simulations by testing.
International Journal of Offshore and Polar Engineering
Vitenskapelig artikkel
-
Mathisen, Kjell Magne;
Hopperstad, Odd Sture;
Okstad, Knut Morten;
Berstad, Torodd.
(1999)
Error Estimation and Adaptivity in Explicit Nonlinear Finite Element Simulation of Quasi-Static Problems.
Computers & structures
Vitenskapelig artikkel
-
Hopperstad, Odd Sture;
Berstad, Torodd;
Ilstad, Håvar;
Lademo, Odd-Geir;
Langseth, Magnus.
(1998)
Effects of the Yield Criterion on Local Deformations in Numerical Simulation of Profile Forming.
Journal of Materials Processing Technology
Vitenskapelig artikkel
Bøker
-
Hirsch, J;
Holmedal, Bjørn;
Nes, Erik Aasmund;
Marthinsen, Knut;
Engler, Olaf;
Abtahi, Shahriar.
(2006)
Virtual Fabrication of Aluminium Products.
John Wiley & Sons
John Wiley & Sons
Fagbok
Del av bok/rapport
-
Ervik, Åsmund;
Saai, Afaf;
Berstad, Torodd;
Meyer, Ole;
Tsuji, Takuma;
Oku, Tatsuya.
(2024)
Numerical modelling of the solid- and fluid dynamic phenomena
controlling the ring plate valve motion and tumbling.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ervik, Åsmund;
Saai, Afaf;
Berstad, Torodd;
Meyer, Ole;
Tsuji, Takuma;
Oku, Tatsuya.
(2022)
Coupled fluid-solid modelling of the valve dynamics in reciprocating compressors.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ervik, Åsmund;
Saai, Afaf;
Berstad, Torodd;
Meyer, Ole;
Tsuji, Takuma;
Oku, Tatsuya.
(2021)
Modelling the dynamics of ring plate valves in reciprocating compressors using coupled CFD-FEM simulations.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Clausen, Arild Holm;
Hovden, Martin Thuve;
Polanco-Loria, Mario;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
Constitutive nodel for thermoplastics - calibration and validation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Kane, Alexandre;
Østby, Erling;
Lademo, Odd-Geir;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2010)
EFFECTS OF THE YIELD CRITERION ON PREDICTED FRACTURE RESPONSES OF PIPELINES SUBJECTED TO LARGE PLASTIC DEFORMATION WITH AND WITHOUT INTERNAL PRESSURE.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Chen, Yan;
Hopperstad, Odd Sture;
Clausen, Arild Holm;
Børvik, Tore;
Berstad, Torodd.
(2009)
Finite element analyses of Charpy tests on extruded aluminium alloys.
EDP Sciences
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Clausen, Arild Holm;
Polanco-Loria, Mario A.;
Moura, Rafael Traldi;
Alves, Marcilio;
Berstad, Torodd;
Langseth, Magnus.
(2009)
Polymer plates subjected to impact: Experimental tests and numerical simulations.
EDP Sciences
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Lademo, Odd-Geir.
(2009)
Forming limit diagrams with an FE-based approach for sheets under non-proportional loading.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Polanco-Loria, Mario;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2009)
A Constitutive Model for Thermoplastics Intended for Structural Applications.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Olden, Vigdis;
Thaulow, Christian;
Berstad, Torodd;
Østby, Erling.
(2009)
Prediction of Hydrogen Embrittlement in 25% CR Duplex Stainless Steel Based on Cohesive Zone Simulation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Benallal, Ahmed;
Berstad, Torodd;
Børvik, Tore;
Hopperstad, Odd Sture;
Nogueira de Codes, R.
(2008)
On the Measurement and Evaluation of the Width of Portevin–Le Chatelier Deformation Bands with Application to AA5083-H116 Aluminium Alloy.
Springer
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Polanco-Loria, Mario;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2008)
A Constitutive Model for Thermoplastics in Structural Applications.
Annet
-
Dørum, Cato;
Hopperstad, Odd Sture;
Berstad, Torodd;
Laukli, Hans Ivar.
(2008)
A probabilistic approach for modelling fracture in die-castings.
Annet
-
Dørum, Cato;
Dispinar, D;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2008)
A probabilistic approach for modelling of fracture in magnesium die-castings.
Annet
-
Polanco-Loria, Mario;
Clausen, Arild Holm;
Berstad, Torodd;
Hopperstad, Odd Sture.
(2008)
A modified Boyce-Raghava model for constitutive modelling of thermoplastics.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Chen, Yan;
Hopperstad, Odd Sture;
Lademo, Odd-Geir;
Clausen, Arild Holm;
Berstad, Torodd;
Langseth, Magnus.
(2007)
Preliminary simulations of the instrumented Charpy V-notch impact test.
Tapir Akademisk Forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd;
Lademo, Odd-Geir;
Benallal, Ahmed.
(2006)
A preliminary numerical study on the influence of PLC on formability of aluminium alloys.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Berstad, Torodd;
Hopperstad, Odd Sture;
Clausen, Arild Holm;
Ilstad, Håvar;
Melve, Bjørn.
(2006)
Implementation of Constitutive Model for Thermoplastics with some Preliminary Results.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Furu, Trond;
Dons, Anne Lise;
Berstad, Torodd;
Holmedal, Bjørn;
Marthinsen, Knut.
(2006)
Through Process Modeling of Extrusion: Evolution in Microstructure and Mechanical Properties through the whole Process Chain from As Cast and Homogenized Condition to Forming of Profiles.
John Wiley & Sons
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Lademo, Odd-Geir;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2005)
Prediction of plastic instability and fracture in extruded aluminium alloys in shell element analysis.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Fjeldbo, Snorre Kjørstad;
Holmedal, Bjørn;
Lademo, Odd-Geir;
Bjerkaas, Hans;
Støren, Sigurd;
Roven, Hans Jørgen.
(2005)
A numerical study on the onset of plastic instability in extruded materials with strong through-thickness texture variation.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Hopperstad, Odd Sture;
Børvik, Tore;
Berstad, Torodd;
Clausen, Arild Holm;
Benallal, Ahmed.
(2005)
A hypoelastic-viscoplastic constitutive model in LS-DYNA for dynamic strain aging – the McCormick model.
Institutt for konstruksjonsteknikk, NTNU
Rapport
-
Reyes, Aase Gavina Roberg;
Hopperstad, Odd Sture;
Berstad, Torodd;
Langseth, Magnus.
(2002)
Implementation of a material model for aluminum foam in LS-DYNA.
Department of Structural Engineering
Rapport
-
Hildrum, Hilde Giæver;
Berstad, Torodd;
Lademo, Odd-Geir;
Malo, Kjell A.;
Hopperstad, Odd Sture.
(2002)
An Introductory FEM Study of Strain Localisation in Welded Aluminium Structures. Part II: Fiilet Weld.
[Mangler utgivernavn]
Rapport
Undervisning
Emner
Formidling
2021
-
Vitenskapelig foredragFærgestad, Rannveig Marie; Holmen, Jens Kristian; Berstad, Torodd; Cardone, Tiziana; Ford, Kevin Anthony; Børvik, Tore. (2021) Modelling and Simulation of Hypervelocity Impacts on Spacecraft in Low Earth Orbit. DYNAmore GmbH 13th European LS-DYNA Conference 2021 , Ulm 2021-10-05 - 2021-10-07
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Vitenskapelig foredragErvik, Åsmund; Saai, Afaf; Berstad, Torodd; Meyer, Ole; Tsuji, Takuma; Oku, Tatsuya. (2021) Modelling the dynamics of ring plate valves in reciprocating compressors using coupled CFD-FEM simulations. Slovak Association for Cooling and Air Conditioning Tech. 10th International Conference on Compressors and Coolants 2021-01-13 - 2021-01-15
2019
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Faglig foredragMorin, David; Berstad, Torodd; Costas, Miguel; Hopperstad, Odd Sture; Langseth, Magnus. (2019) *MAT_258: A Through-Thickness Regularization Scheme for Shell Element Analyses – Application to Aluminium Components. 12th European LS-DYNA Conference 2019 , Koblenz 2019-05-14 - 2019-05-16
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Faglig foredragMorin, David; Reil, Matthias; Berstad, Torodd; Costas, Miguel; Langseth, Magnus. (2019) Modelling of Steel-Aluminium Components using Structural Adhesive and Self-Piercing Rivets. 12th European LS-DYNA Conference 2019 , Koblenz 2019-05-14 - 2019-05-16
2015
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Vitenskapelig foredragTryland, Tore; Berstad, Torodd. (2015) Keep the Material Model simple with input from Elements that predict the Correct Deformation Mode. DYNAMORE GMBH 10th European LS-DYNA Conference 2015 , Wurthsburg 2015-06-15 - 2015-06-17
2012
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Vitenskapelig foredragFyllingen, Ørjan; Berstad, Torodd; Langseth, Magnus; Hopperstad, Odd Sture; Tarigopula, Venkatapathi; Schill, Mikael. (2012) On stretch-bending of a high-strength steel component taking into account the forming history. Dynamore Nordic AB Nordic LS-DYNA Users Forum , Gøteborg 2012-10-11 - 2012-10-11
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PosterAursand, Eskil; Aursand, Peder Kristian; Berstad, Torodd; Dørum, Cato; Hammer, Morten; Munkejord, Svend Tollak. (2012) CO2 pipeline integrity: A coupled fluid-structure model using a reference equation of state for CO2. RITE / IEAGHGT GHGT-11 -- 11th International Conference on Greenhouse Gas Technologies , Kyoto 2012-11-18 - 2012-11-22
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Vitenskapelig foredragNordhagen, Håkon Ottar; Aursand, Peder; Dørum, Cato; Berstad, Torodd; Hammer, Morten; Munkejord, Svend Tollak. (2012) Coupled fluid-structure simulation of running fractures in CO2 pipelines. Tiratsoo Technical The Third International Forum on Transportation of CO2 by Pipeline , Newcastle Upon Tyme 2012-06-20 - 2012-06-21
2011
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Vitenskapelig foredragSaai, Afaf; Westermann, Ida; Dumoulin, Stephane; Hopperstad, Odd Sture; Berstad, Torodd. (2011) Influence of Microstructure and Texture on the Bendability of AA7108 Aluminium Alloy. ICTP 2011 2011-09-25 - 2011-09-30
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Vitenskapelig foredragPolanco-Loria, Mario A.; Grytten, Frode; Berstad, Torodd; Sørbø, Steinar; Hinrichsen, Einar L. (2011) Numerical simulations of UD-FRC plates: A pin-hole loaded case and ballistic limit predictions. University of Valenciennes 3th International Conference on Impact Loading of Lightweight Structures , Valenciennes 2011-06-28 - 2011-07-01
2010
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PosterBerstad, Torodd; Dørum, Cato; Jakobsen, Jana Poplsteinova; Kragset, Steinar; Li, Hailong; Lund, Halvor. (2010) CO2 pipeline integrity: A new evaluation methodology. IEAGHGT GHGT-10 – 10th International Conference on Greenhouse Gas Control Technologies , Amsterdam 2010-09-19 - 2010-09-23
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Vitenskapelig foredragNordhagen, Håkon Ottar; Berstad, Torodd; Dørum, Cato; Kragset, Steinar; Lund, Halvor; Morin, Alexandre. (2010) Simulering av løpende brudd i rørledninger med høyt trykk. NPF NPF, Offshore rørledninger/stigerør , Trondheim 2010-10-19 - 2010-10-20
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Vitenskapelig foredragClausen, Arild Holm; Hovden, Martin Thuve; Polanco-Loria, Mario A.; Berstad, Torodd; Hopperstad, Odd Sture. (2010) A Constitutive Model for Thermoplastics with some Applications. IMPLAST (International Symposium on Plasticity and Impact Mechanics 2010-10-12 - 2010-10-14
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Vitenskapelig foredragClausen, Arild Holm; Hovden, Martin Thuve; Polanco-Loria, Mario A.; Berstad, Torodd; Hopperstad, Odd Sture. (2010) Constitutive model for thermoplastics - Calibration and validation. 19th DYMAT Technical Meeting , Strasburg 2010-12-01 - 2010-12-03
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Vitenskapelig foredragHolmedal, Bjørn; Hopperstad, Odd Sture; Berstad, Torodd. (2010) Modeling Transients Related to Strain-path Changes. 12th international conference on aluminium alloys (ICAA12) 2010-09-05 - 2010-09-09
2009
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PosterPolanco-Loria, Mario; Clausen, Arild Holm; Berstad, Torodd; Hopperstad, Odd Sture. (2009) A constitutive model for thermoplastics in structural applications. DYFP 2009 , Rolduc, Kerkrade 2009-04-05 - 2009-04-09
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PosterChen, Yan; Hopperstad, Odd Sture; Clausen, Arild Holm; Børvik, Tore; Berstad, Torodd. (2009) Finite element analyses of Charpy tests on extruded aluminium alloys. DYMAT 2009 , Brussel 2009-09-07 - 2009-09-11
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Vitenskapelig foredragClausen, Arild Holm; Polanco-Loria, Mario; Moura, Rafael Traldi; Alves, Marcilio; Berstad, Torodd; Langseth, Magnus. (2009) Polymer plates subjected to impact: Experimental tests and numerical simulations. DYMAT 2009 , Brussel 2009-09-07 - 2009-09-11
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Vitenskapelig foredragPolanco-Loria, Mario; Clausen, Arild Holm; Berstad, Torodd; Hopperstad, Odd Sture. (2009) A Constitutive Model for Thermoplastics Intended for Structural Applications. 7th European LS-DYNA Conference , Salzburg 2009-05-14 - 2009-05-15
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Vitenskapelig foredragClausen, Arild Holm; Moura, Rafael Traldi; Alves, Marcilio; Langseth, Magnus; Polanco-Loria, Mario; Berstad, Torodd. (2009) Impact of PEHD plates: Experimental tests and numerical simulations. COBEM 2009 , Gramado 2009-11-15 - 2009-11-20
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PosterDelhaye, Virgile Roger; Polanco-Loria, Mario; Berstad, Torodd; Clausen, Arild Holm; Hopperstad, Odd Sture; Moussy, Francois. (2009) Characterization and numerical modelling of a polypropylene material applied in the automotive industry. DYFP 2009 , Rolduc, Kerkrade 2009-04-05 - 2009-04-09
2008
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Vitenskapelig foredragDørum, Cato; Hopperstad, Odd Sture; Berstad, Torodd; Laukli, Hans Ivar. (2008) A probabilistic approach for modelling fracture in die-castings. 8th World Congress on Computational Mechanics, 5th European Congress on Computational Methods in Applied Sciences 2008-06-30 - 2008-07-04
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Vitenskapelig foredragDørum, Cato; Dispinar, D; Berstad, Torodd; Hopperstad, Odd Sture. (2008) A probabilistic approach for modelling of fracture in magnesium die-castings. High Tech Die Casting 2008 2008-04-09 - 2008-04-10
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Vitenskapelig foredragBenallal, Ahmed; Berstad, Torodd; Børvik, Tore; Hopperstad, Odd Sture; Nogueira de Codes, R. (2008) On the Measurement and Evaluation of the Width of Portevin–Le Chatelier Deformation Bands with Application to AA5083-H116 Aluminium Alloy. IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media 2008-01-14 - 2008-01-18
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Vitenskapelig foredragPolanco-Loria, Mario; Clausen, Arild Holm; Berstad, Torodd; Hopperstad, Odd Sture. (2008) A modified Boyce-Raghava model for constitutive modelling of thermoplastics. SIMLab, Centre of Research-based Innovation, NTNU International Conference on Impact Loading of Lightweight Structures , Trondheim 2008-06-17 - 2008-06-19
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Vitenskapelig foredragPolanco-Loria, Mario; Clausen, Arild Holm; Berstad, Torodd; Hopperstad, Odd Sture. (2008) A Constitutive Model for Thermoplastics in Structural Applications. 21st Nordic Seminar on Computational Mechanics 2008-10-16 - 2008-10-17
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Vitenskapelig foredragDørum, Cato; Østby, Erling; Berstad, Torodd; Popescu, Mihaela; Thaulow, Christian. (2008) Numerical simulation of crack-arrest in high pressure pipelines. 8th International Welding Symposium , Kyoto 2008-11-16 - 2008-11-18
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Vitenskapelig foredragOlden, Vigdis; Thaulow, Christian; Johnsen, Roy; Østby, Erling; Berstad, Torodd; Nyhus, Bård. (2008) Influence of hydrogen from CP on the fracture susceptibility of 25% Cr duplex stainless steel - FE modeling of constant load testing using hydrogen influenced cohesive zone elements. ISOPE 2008 , Vancouver 2008-07-06 - 2008-07-11
2007
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Vitenskapelig foredragClausen, Arild Holm; Hopperstad, Odd Sture; Berstad, Torodd; Ilstad, Håvar; Melve, Bjørn. (2007) Modelling of thermoplastics: State-of-the-art and challenges. NAFEMS Materials Modeling - FEA Simulations of the Behaviour of Modern Industrial Materials Including their Failure 2007-03-20 - 2007-03-21
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Vitenskapelig foredragHopperstad, Odd Sture; Børvik, Tore; Berstad, Torodd; Lademo, Odd-Geir; Benallal, Ahmed. (2007) Simulation of the Portevin-Le Chatelier effect and plastic instability in aluminium alloys. Delft University of Technology Instabilities across the Scales (IAS07) , Delft 2007-07-02 - 2007-07-05
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Vitenskapelig foredragHopperstad, Odd Sture; Berstad, Torodd; Lademo, Odd-Geir; Langseth, Magnus. (2007) Modelling of material behaviour and fracture for aluminium alloys with applications to plastic forming and crashworthiness. 6th European LS-DYNA Users’ Conference , Göteborg 2007-05-29 - 2007-05-30
2006
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Vitenskapelig foredragHopperstad, Odd Sture; Børvik, Tore; Berstad, Torodd; Lademo, Odd-Geir; Benallal, Ahmed. (2006) A preliminary numerical study on the influence of PLC on formability of aluminium alloys. The 9th International Conference on Material Formaing ESAFORM 2006 , Glasgow 2006-04-26 - 2006-04-28
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PosterHopperstad, Odd Sture; Børvik, Tore; Berstad, Torodd; Benallal, Ahmed. (2006) Finite element simulations of the Portevin-Le Chatelier effect in aluminium alloy. 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading , Dijon 2006-09-11 - 2006-09-15
2004
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Vitenskapelig foredragBerstad, Torodd; Lademo, Odd-Geir; Hopperstad, Odd Sture; Langseth, Magnus. (2004) Formability modeling with LA-DYNA". 8th International LS-Dyna User's Conference , Detroit 2004-05-03 - 2004-05-05
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Vitenskapelig foredragBerstad, Torodd; Furu, Trond; Holmedal, Bjørn; Hopperstad, Odd Sture; Lademo, Odd-Geir; Nes, Erik Aasmund. (2004) FEM and a microstructure based work hardening model used to calculate forming limit curves. ESAFORM , Trondheim 2004-04-28 - 2004-04-30
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Vitenskapelig foredragLademo, Odd-Geir; Berstad, Torodd; Hopperstad, Odd Sture; Tryland, Tore; Furu, Trond; Langseth, Magnus. (2004) A model for process-based crash simulations. 8th International LS-DYNA User's Conference , Detroit 2004-05-03 - 2004-05-05
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Vitenskapelig foredragReyes, Aase Gavina Roberg; Hopperstad, Odd Sture; Berstad, Torodd; Langseth, Magnus. (2004) Implementation of a constitutive model for aluminum foam including fracture and statistical variation of density. LS-DYNA 8th LS-DYNA International Users Conference , Detroit 2004-05-02 - 2004-05-04
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Vitenskapelig foredragTryland, Tore; Lademo, Odd-Geir; Berstad, Torodd; Hopperstad, Odd Sture; Langseth, Magnus; Furu, Trond. (2004) Process based simulations of an aluminium bumper system. Int. Symposium Crashworthiness of Light-weight Automotive Structures , Trondheim 2004-06-17 - 2004-06-18
2003
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Vitenskapelig foredragClausen, Arild Holm; Oppedal, Henning; Berstad, Torodd. (2003) FEM Simulations of a Split-Hopkinson Tension Bar. 16th Nordic Seminar on Computational Mechanics , Trondheim, Norge 2003-10-18 -
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Vitenskapelig foredragBenallal, Ahmed; Berstad, Torodd; Børvik, Tore; Clausen, Arild Holm; Hopperstad, Odd Sture. (2003) On the Effect of Negative Strain-Rate Sensitivity on the Behaviour of Aluminium Alloy 5083-H116. 5th Euromech Solid Mechanics Conference , Thessaloniki, Hellas 2003-08-22 -
2002
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Vitenskapelig foredragHopperstad, Odd Sture; Berstad, Torodd; Lademo, Odd-Geir; Reyes, Aase Gavina Roberg; Langseth, Magnus; Hanssen, Arve Grønsund. (2002) Modelling of the behaviour and failure of aluminium alloys and foams. CrashMAT 2002 , Freiburg 2002-04-16 -
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Vitenskapelig foredragLademo, Odd-Geir; Hopperstad, Odd Sture; Berstad, Torodd; Langseth, Magnus. (2002) Modelling of aluminium for crashworthiness analyses. Nordic LS-DYNA Users Conferende , Gotenburg, Sweden 2002-09-17 -
2001
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Vitenskapelig foredragLademo, Odd-Geir; Hopperstad, Odd Sture; Berstad, T; Langseth, Magnus. (2001) Numerical Simulations of Ductile Failure in Extruded Aluminium Alloys Using a Coupled Model of Elastoplasticity and Damage. Third European LS-DYNA Conference , Paris, France 2001-06-19 -
1995
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Vitenskapelig foredragBerstad, Torodd; Langseth, Magnus; Hopperstad, Odd Sture. (1995) Crashworthiness of thin-walled aluminium extrusions. 4th International Conference on Computational Plasticity , [Mangler data]
1994
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Vitenskapelig foredragLangseth, Magnus; Berstad, Torodd; Hopperstad, Odd Sture; Clausen, Arild Holm. (1994) Energy absorption in axially loaded square thin-walled aluminium extrusions. 3rd International Conference on Structures Under Shock and Impact , [Mangler data]
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Vitenskapelig foredragBerstad, Torodd; Hopperstad, Odd Sture; Langseth, Magnus. (1994) Elasto-viscoplastic constitutive models in the explicit finite element code LS-DYNA3D. 2nd International LS-DYNA3D Conference , [Mangler data]
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Vitenskapelig foredragLangseth, Magnus; Hopperstad, Odd Sture; Berstad, Torodd. (1994) Energy absorption in axially loaded square thin-walled aluminium extrusions. 7th Nordic Seminar on Computational Mechanics , [Mangler data]
1993
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Vitenskapelig foredragLangseth, Magnus; Berstad, Torodd; Larsen, Per Kristian. (1993) Impact loading of plates : a comparison between numerical simulations and experimental results. International Symposium on the Interaction of Nonnuclear Munitions withStructures (6 : 1993 : Panama City Beach, Fla.) , [Mangler data]