Page 17 - Annual Report 2012 - SAMCoT

17 SAMCoT • Annual report 2012
TheSAMCoTspecializedresearchgroupin2012consisted
of Sergey Kulyakhtin, Anna Pustogvar, Professor Knut
V. Høyland, Professor Aleksey Marchenko, Anders
Møllegaard, Henning Helgøy and Oda Skog-Astrup
from NTNU/UNIS, Professor Jukka Tuhkuri from Aalto,
Dr. Jaakko Heinonen and Dr. Kari Kolari from VTT and
Professor Peter Sammonds from UCL. In January 2013,
Stanislav Pavlov began his PhD studies at UCL and Arttu
Polojärvi started his post-doc at Aalto.
The RITAS Associated Project facilitated our research
team to carry out and analyse scale-model experiments
Fig. 5a: Freeze-bond breaking during the first phase of the
shear box test.
Fig. 5b-e: Individual freeze-bonds
b) Putting two pieces together.
c) Confinement added and freeze-bond ready for testing.
d) Testing of freeze-bond strength.
e) Thin section showing the ice texture of the two ice
blocks and the freeze-bond.
in the Hamburg Ship Model Basin (HSVA) in Germany.
Scale-model experiments about ice rubble properties
were completed and the analysis appears to confirm
that scale-model ice rubble is substantially weaker than
full-scale rubble.
Dr. Heinonen spent three month at NTNU as a SAMCoT
Guest Researcher and carried out numerous simulations
of scale-model ice rubble tests with the Finite Element
Model. His goal was to quantify the different material
properties of full-scale and scale-model ridges and
to establish what consequences these characteristics
a)
c)
e)
b)
d)