工程爆破

2011, v.17;No.64(02) 15-18+22

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接触爆炸作用下钢板层裂效应数值分析
NUMERICAL ANALYSIS ON SPALLING EFFECTS OF STEEL PLANE UNDER CONTACTING EXPLOSION LOAD

刘飞;唐献述;任新见;
LIU Fei1,TANG Xian-shu2,REN Xin-jian1(1.The Third Engineer Scientific Research Institute of the Headquarters of the General Staff,Luoyang 471023,Henan,China;2.Guilin Air Force Academy,Guilin 541003,Guangxi,China)

摘要(Abstract):

基于AutoDyn对接触爆炸荷载作用下钢板的层裂过程进行数值模拟,并对照试验进行分析,探讨了应力波在钢板中的传播过程和特点,剖析了钢板的层裂机理,指出钢板的层裂破坏是钢材在拉伸波作用下的一个损伤累积和能量累积过程。计算表明,装药的高度、钢板的厚度与材质是影响接触爆炸作用下钢板层裂发生、发展及其破坏效应的核心因素。试验和计算结论为钢板在某防护结构中的应用提供了技术参考。
Based on AutoDyn soft,the spalling process of steel plate under contacting explosion load was numerically simulated and compared with tests.The stress wave propagation process and characteristics were discussed,and the spalling mechanism was analyzed.It was pointed out that the spalling effects of steel plate were a damage and energy accumulation process under tensile wave.The calculation shows that charge height,steel thickness and material property are the core factors which influence spalling occurring,developing and failure effects.The test and calculation results provide technical references for the application of the steel plate in protective structures.

关键词(KeyWords): 接触爆炸;钢板;层裂效应;累积损伤;拉伸波;数值分析
Contacting explosion;Steel plate;Spalling effect;Accumulated damage;Tensile wave;Numerical analysis

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作者(Author): 刘飞;唐献述;任新见;
LIU Fei1,TANG Xian-shu2,REN Xin-jian1(1.The Third Engineer Scientific Research Institute of the Headquarters of the General Staff,Luoyang 471023,Henan,China;2.Guilin Air Force Academy,Guilin 541003,Guangxi,China)

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