基于Starfield迭加法的条形药包爆炸应力场分析  

Analysis of blast stress field of linear explosive charge based on starfield superprosition method

作　　者：向文飞[1] 舒大强[1] 朱传兵[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《爆炸与冲击》2004年第5期437-442,共6页Explosion and Shock Waves

摘　　要：在分析条形药包的现有理论研究方法与实验成果的基础上,认为爆轰波沿装药方向传播的时间效应是影响条形药包爆炸应力场特征的主要因素。综合Starfield迭加法与动力有限元法,提出了基于Starfield迭加原理的条形药包爆炸应力场数值分析模型,全面分析了不同起爆方式下条形药包爆炸应力场发展及形成规律,结论对实际工程具有一定指导意义。The analyses of the chief theoretical methods and some important experimental results of linear explosive charge show that the time effect of the propagation of the blast wave through the linear explosive charge is the main factor which influences the character of the blast stress field of the linear explosive charge. Combining the starfield superposition method with dynamic finite element method, a numerical model of blast stress field of linear explosive charge is proposed based on starfield superposition fundamental. The evolution and formation of the blast stress field of the linear explosive charge are analyzed in different detonating modes. Some useful conclusions to direct engineering practice are obtained.

关 键 词：爆炸力学 爆炸应力场 Starfield迭加法 条形药包 

分 类 号：O389[理学—流体力学] TD235[理学—力学]