Spallation affected fracture pattern of a titanium alloy plate subjected to linear shaped charge jet penetration

摘要

In this paper, the commercial finite element code LS-DYNA is employed to simulate the process of a certain kind of a linear shaped charge jet penetrating into a TC4 (Ti-6Al-4V) titanium alloy plate of moderate thickness. The fracture profiles agree well with experimental observations, which confirms the validity of the code and the Johnson-Cook material model applied to describe the TC4 plate. The fracture pattern of the plate is drawn based on this comparison.