Peculiarities of high-rate deformation of copper at convergence of cylindrical channels under effect of shock waves

This work presents a new method for study of peculiarities of metal deformation at micro- and meso scale levels at strain rate of 105-107s-1. A copper liner loads test copper samples pressed into copper guide rings behind which one can find a substrate made of the same material. The loading parameters, such as the intensity SX, and the pulse duration t are specified by the liner's thickness and speed. Cylindrical holes of various diameters (D0=0.5-2mm) in the test samples are produced beforehand. Coarse-grain annealed copper M1 was chosen as the subject of the study. The loading parameters were chosen in such a way as to realize the decrease of the holes diameter and complete compaction in the recovered samples.