基于效应靶法评价爆炸冲击波毁伤的数值仿真  

Numerical Simulation of Assessing the Damage of Explosive Blast Wave Base on Effective Target's Method

作　　者：傅辉刚 孔德仁[1] 李丽萍[1] 何性顺 王胜强 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]中国兵器工业204所,陕西西安710065

出　　处：《测试技术学报》2015年第4期326-331,共6页Journal of Test and Measurement Technology

基　　金：技术基础资助项目(No.J092013B003);国家自然科学基金资助项目(No.11372143)

摘　　要：为反映爆炸冲击波对目标结构破坏程度的总体毁伤评价,建立了基于效应靶评价爆炸冲击波毁伤的方法.应用有限元动力学分析软件ANSYS/LS-DYNA,对效应靶在爆炸冲击波下的变形响应进行数值模拟研究,得到了挠度分别与炸距及TNT当量的函数关系,结合冲击波能量谱发现了自振频率对效应靶毁伤的影响,研究成果为战斗部爆炸冲击波的毁伤评价提供了依据和参考.In order to reflect the overall assessment of structural damage under explosive blast wave,method for assessing the damage of Explosive Blast Wave base on Effective Target was built.By the finite element analysis software ANSYS/LS-DYNA,the numerical model was built to simulate the plastic deformation response of effective target under explosive blast wave,concluding the functional relation of effective target＇s deflection respectively as explosion distance and TNT equivalent,with the energy spectrum of blast wave,which effect of nature frequency on effective target＇s damage,the research results provided the basis and reference for damage assessment of warhead＇s explosive blast wave.

关 键 词：爆炸冲击波 效应靶 毁伤评价 数值模拟 自振频率 

分 类 号：O384[理学—流体力学]