Metals Response to Multiple Shock Loading Impacts

This project will look to generate early stage spall, ie nucleate voids within intact materials, and then investigate the resultant effects on the mechanical and microstructural properties when the metal is subject to a second shock impact, re-compacting the void region. Careful control of the initial impactor conditions, utilising shock recovery techniques, will enable the control of, and study the effects of, the dispersal of the voids (width of spall plane) and the density of the voids. In addition, the different crystal structures of the aluminium and titanium are expected to respond to the shock loading and re-compaction very differently.