Localization of deformation in copper single crystals during explosive collapse

It is established that high-rate axisymmetric loading of single crystals by the method of explosive collapse of a hollow thick-walled cylinder causes deformation that involves all active close-packed slip systems. The spatial distribution of macroscopic sites of strain localization is determined by the crystallography of the active systems in single-crystalline samples. The established correlation between the observed shear bands in the microstructure of copper single crystals and $\{111\}$ active slip $\langle110\rangle$ systems of face-centered cubic (FCC) crystals and their symmetric arrangement show that deformation at a rate of $\approx5\cdot10^4$ sec$^{-1}$ occurs according to the crystalline structure of the materials.