摘要
用LS-DYNA软件,确定了立方体破片与LY—12铝合金靶板材料模型。对立方体破片在不同速度下高速侵彻多层LY—12铝合金靶板进行了有限元分析,得到了不同速度下破片侵彻多层靶板的速度曲线。并与破片在相同条件下侵彻等厚度的单层靶板进行对比分析,所得结果表明多层等效靶与等厚度的单层等效靶在不同速度下具有一定的差异,并且在破片垂直入射时差异性更大,并对这种差异的原因做了分析。
By LS-DYNA,define the material model of cubic fragments and LY—12 aluminum alloy targets, simulation analysis of cubic fragments penetrating at high different initial velocities into multi-LY12 aluminum alloy target are made.The velocity curve in the process of fragment penetrating can got and compared with the fragments under the same conditions penetrating the single target which with same thickness to multi targets.The results show that it is different between multi targets and equivalent single-target with fragment at different velocity,and the reasons for this difference are analyzed.
出处
《科学技术与工程》
2011年第17期3877-3881,共5页
Science Technology and Engineering
关键词
破片
侵彻
等效靶
有限元分析
LS-DYNA
penetration
equivalent target
fragment
finite element analysis
LS-DYNA
