The dynamic performance of copper under impact loading

Abstract

The incident wave and transmission wave varying with the time have been obtained by SHPB experiment. The relationship curve for stress and strain of material copper has also been obtained. The whole process has been numerical simulated by LSDYNA procedure. The results between the experiment and numerical simulation are accordance .It indicates that the dynamic constitutive equations can be researched by SHPB experiment with enough precision. With the primary gas gun, the dynamic properties of copper have been studied under high pressure. Hugoniot curve of metal materials have been obtained, which can be used to study the high-pressure equation of state. The parameters of the state equation have been obtained. The copper is often used to the dynamic test as the standard materials, so the dynamic performance of the copper self is so important. © Maxwell Scientific Organization, 2013.