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
Abstract
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.
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