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Combustion, Explosion and Shock Waves

2017 year, number 3

Spallation Affected Fracture Pattern of a Titanium Alloy Plate Subjected to Linear Shaped Charge Jet Penetration

D.-Zh. Lyu, W.-R. Hong, M.-Ch. Yuan, H.-J. Xuan
Zhejiang University, Hangzhou, 310027 China
Keywords: линейный кумулятивный заряд, внедрение, отражение волны напряжений, откол, картина разрушения, linear shaped charge (LSC), penetration, stress wave reflection, spallation, fracture pattern


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.