SAMCoT - Annual Report 2015

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21 SAMCoT • ANNUAL REPORT 2015
WORK PACKAGE 2 (WP2)
As work continues on the modelling of freeze bonds in 3D DEM simulations, the results
seem promising. Freeze-bonds can be modelled and their inclusion improves the
prediction of simulations of full-scale punch-through tests.
Another effort is devoted to the prediction of ice rubble shear strength using critical
state theories.
In soil mechanics a thermo-hydro-mechanical (THM) finite element model for frozen
soil is completed. The numerical tool developed enables isogeometric analysis with
B-splines used as a numerical solution method leading to a local mass and energy
conserving simulation, unlike the standard finite element method. The developed
numerical tool can e.g. be used to more precisely simulate frost heave of a buried
pipeline.
Most of the activities carried out in Work Package 2 (WP2) are rounding off and
researchers in WPs 3, 4 & 6 have started making use of the results provided by their
colleagues from WP2. All WP2 PhD candidates are about to submit their thesis and
Post-Doc Polojärvi has become Assistant Professor at Aalto University.