The Influence of Target Hardness on Penetration Effect of Linear Shaped Charge Cutting Cable
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摘要:利用ANSYS/LS-DYNA有限元软件对V9、V7两种线型聚能切割索切割45钢靶板的过程进行数值模拟，并对模拟结果进行讨论。在此基础上，进行实际的线型聚能切割索切割靶板试验。结果表明：数值模拟结果和切割试验结果平均误差为5.84%，有很好的一致性；靶板最大侵彻深度（h）随靶板材料硬度（Hb）的增加而减小，V9线型聚能切割索切割条件下的数学关系式为：h=-0.004Hb+4.34，V7线型聚能切割索切割条件下的数学关系式为：h=-0.003Hb+3.15。研究结果可以为工程技术人员选择适当的线型聚能切割索提供参考。
Abstract:The numerical simulation of cutting process for linear shaped charge cutting cable of type V9 and V7 on the 45 steel target is conducted, by ANSYS/LS- DYNA finite element software. Based on this, the cutting experiments of linear shaped charge cutting cable on the target were performed as well. The results indicate that the average difference between the data of the experiments and numerical simulation is 5.84%, which show a good consistency, the penetrating depth h is reduced as hardness(Hb) of the target material increasing. For V9 linear shaped charge cutting cable, its mathematical relation is h=-0.004Hb+4.34, and that of V7 linear shaped charge cutting cable is h=-0.003Hb+3.15.The research results can provide reference for engineers to select the appropriate linear shaped charge cutting cable.
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