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The paper introduces the research and applications of piezoelectric ceramics in ignition and detonation, and summarize some effective methods for improving the properties and ageing of ceramic ma terials.

介绍了引燃引爆用压电陶瓷的研究和应用,总结了提高材料性能和改善老化的一些有效措施。

In order to analyze the effect of material models,arithmetic methods and mesh sizes on the results and precision,the detonation process of covered charge impacted by cylindrical steel fragment with flat head was simulated by non-linear dynamic analysis program LS-DYNA3D.

为了分析炸药起爆数值模拟中材料模型、计算方法及网格的疏密等因素对计算结果和精度的影响,应用非线性动力学分析程序LS-DYNA3D对圆柱形平头钢破片撞击带盖板装药的引爆过程进行了数值模拟,分析了John-son-Cook和弹塑性硬化2种材料模型,Lagrange、ALE和流固耦合3种算法和不同疏密程度的网格对炸药起爆过程、引爆速度阈值和爆轰峰值压力的影响,给出了冲击起爆数值计算的网格划分原则和材料模型的选取建议。

Detonatiory of charge behind the target plate is then studied, and a formula for calculating the detonation velocity is educed.

本文针对破片战斗部的杀伤破片击穿和引爆靶弹的毁伤机制 ,介绍了一种具有实用价值的分析计算法 ,对破片穿靶的侵彻过程进行了系统的分析 ;导出了冲塞式正 (斜 )击靶的穿靶后 ,破片和塞块的速度Vr。

Jet initiation process of TATB and X02 (mixture of TATB and HMX)explosives is simulated by means of the Lagrange 2D-FPM code,the equation of state of TATB and the chemical rate function being as listed in reference 1.

引用文献1有关TATB炸药的状态方程、化学反应率函数，使用二维拉氏质团法程序，数值模拟了射流对TATB和X02（TATB与HMX混合）炸药的引爆特征。

Using the method of ALE arithmetic of LS-DYNA to simulation the formation process and the initiation process of shelled explosive of shaped charge jet.

利用非线性有限元程序 LS-DYNA 中的 ALE 算法对聚能射流的成型、冲击引爆带壳炸药作用过程进行了数值模拟研究。