Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions · 2003 · 15 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceComputational Materials ScienceFinite Element AnalysisMechanical Behavior Of MaterialsGlacier MechanicsIce DeformationMechanical Property SimulationSolid Mechanics ApplicationsStrength Of MaterialsStructural SimulationBendingBending PropertiesDisplacement CurvesExperimental TestingIce Sheet LoadingMechanical Properties Of Ridged IceMohr-coulomb CriterionTensile Strength
A series of punch tests on ice rubble conducted at the Hamburgische Schiffbau-Versuchsanstalt (HSVA) in Hamburg was analyzed. The tests were simulated using the PLAXIS finite element code. Both simple elastic-perfectly plastic Mohr-Coulomb and advanced hardening model with cap were used to simulate the ice rubble behavior. The ice ridges were geometrically modeled as closely as possible to how they were really produced in the ice tank, i.e. as a part of the body consisting of the level ice/consolidated layer/ice rubble floating in the water. The material properties were chosen such that the simulated load displacement curves fitted the experimental ones sufficiently close. Particular attention was focused on modeling the consistent behavior of both the pushing platen and the surrounding ice sheet. The simulations showed that the bending effect and consequently the tensile strength of the ice rubble play an important role in this kind of punch tests or, more generally, in this kind of loading. Finally, the parametric study was carried out in order to investigate the influence of different ice rubble material parameters on its behavior in the punch test.