A METHOD FOR THE SIMULATION OF A PERFECTLY RIGID BODY MOVING IN ELASTIC MEDIUM USING A FIXED COMPUTATIONAL GRID
A. A. Krayukhin, Yu. V. Yanilkin, A. L. Stadnik, M. Yu. Eguzhova
VANT. Ser.: Mat. Mod. Fiz. Proc 2018. Вып.1. С. 15-29.
The paper suggests the BODY-3D method to simulate the motion of a perfectly rigid body in an elastoplastic medium with regard to friction using an Eulerian computational grid, its implementation in the EGAK code is described and results of test simulations are presented. Two problems were used to test the method. An exact solution was obtained for the first one, the problem of a freely falling rotating rigid body impacting a barrier. The second was the problem of a moving rigid body penetrating into a soft ground at an angle. Keywords: penetration, rigid body, friction, elastoplastic medium, noninertial frame of reference, Eulerian computational grid, the EGAK code.
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