Numerical simulation of the ice sphere impact onto the barrier

Two mathematical models of dynamic deformation and possible destruction of ice masses were modified by equipping them with experimental functions and constants. As their functions and constants, we used both our own experimental data and the results of other authors obtained from the analysis of modern scientific literature. In the first model, elastoplastic ice deformation is described using the relations proposed by S.S. Grigoryan. They are equipped with a nonlinear irreversible experimental dependence of the volume compressibility of ice on pressure. The second model is based on the equations of ice, as a damaging and differently-resisting medium with a yield strength determined by the strain rate. These models are implemented in the existing computer programs for mathematical simulation of dynamic processes of impact interaction of media with structural elements. The verification of modified software was carried out by comparing the known experimental data with the results of numerical calculations of the processes of impact interaction of ice products with hard barriers. It was concluded that the data of modified programs can be used for assessing the force effect of ice on structural elements in the considered range of impact speeds.