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NUMERICAL SIMULATION WITH THE "EGAK" CODE OF MOVING RIGID PENETRATORS IN ELASTO-PLASTIC MEDIA USING A STATIONARY COMPUTATIONAL GRID

A. A. Krayukhin, A. L. Stadnik, Yu.V. Yanilkin
VANT. Ser.: Mat. Mod. Fiz. Proc 2019. Вып.1. С. 19-32.

Results of simulations for several problems of rigid penetrators moving in elasto-plastic media are presented. The numerical simulation was performed with the EGAK code using a stationary computational grid and an ideal solid body approximation to describe the penetrator. The medium flow was simulated using the non-inertial frame of reference with respect to a fixed penetrator. The EGAK simulation results are in a good agreement with results of similar simulations in Lagrangian variables and data of experiments.

Keywords: penetration, an ideal solid body, elasto-plastic medium, non-inertial frame of reference, stationary computational grid, the EGAK code.








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