冲击载荷条件下FAE装药的应力计算  

The Stress Computation of FAE Charge under Condition of Impact Loading

作　　者：汪建锋[1,2] 白春华[2] 李建平[2] 张杰[1] 

机构地区：[1]66476部队,北京100040 [2]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《弹箭与制导学报》2009年第1期140-143,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：文中主要是针对一次起爆型FAE装药结构,对其进行合理简化,建立了FAE装药结构的简化模型。并对其简化模型进行受力分析,得出了冲击载荷作用下FAE装药的内部应力值大小及其变化过程;利用ANSYS-LS/DYNA对FAE装药的内部应力进行数值模拟,通过比较FAE装药底部应力的理论计算值与数值模拟值,得出了理论计算和数值模拟具有较好的一致性;从而验证简化模型的合理性以及FAE装药内部应力的理论计算值的确切性。The structure of FAE charge is aimed at and is simplified reasonably. The simplified model of FAE charge is made up and is analyzed by the mechanics. The value of inside stress and the process of change about FAE charge are concluded under condition of impact loading. The value of inside stress about FAE charge is simulated by the software of ANSYS-LS/DYNA. By comparison of the bottom stress value of FAE charge on theoretical computation and numerical simulation, the value of theoretical computation and numerical simulation have a better concordance. Consequently the rationality of simplified model is validated and the theoretical computation on the inside stress of FAE charge is accepted.

关 键 词：爆炸力学 FAE装药 应力计算 数值模拟 

分 类 号：O389[理学—流体力学]