Numerical simulation of the plastic flow field near the bonding surface of explosive welding

摘要

Numerical simulation on the plastic flow near the bonding surface of explosive welding is executed under some limited conditions. In order to calculate the bonding interface generation in explosive welding, a second order finite difference methodis developed for elastic-plastic material. In this simulation the formation process of bonding interface deformation generated by a symmetric collision between copper plates is investigated. The calculation results show qualitative agreements withexperimental facts.