NUMERICALLY MODELLING TENSILE EXPERIMENTS WITH CAP-SHAPED SPECIMENS UNDER IMPACT LOADING ON A VERTICAL GAS-GUN STAND

Abstract

The paper deals with numerically investigating the processes of elasto-viscoplastic deformation of cap-shaped specimens loaded in tension in the strain-rate range of 10^{2 s-1} to evaluate strain rates and values implemented in the experiments on dynamic failure of structural materials on a vertical gas-gun stand.

Keywords: vertical gas-gun stand, cap-shaped specimens, impact tension, elasto-viscoplastic characteristics.