Material effects on the spallation response of metals and alloys

Abstract

The spall strength of materials is commonly used as a measure of a material's response to shock loading. As would be expected, this is affected by the various materials and microstructural features that control the mechanical response at all strain-rates. In this paper, we examine how the spall response varies, firstly through changes in orientation in aluminium single crystals and then at increasing levels of complexity, through age hardening in a copper-beryllium alloy, changes in Peierls stress (between niobium and molybdenum) and finally differences in unit cell (aluminium and tantalum).