混凝土重力坝在侵彻及爆炸加载下的仿真分析  

Simulation Analysis for Concrete Gravity Dam under Penetration and Explosion

作　　者：张甲文[1] 孟会林[1] 卢江仁[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《弹箭与制导学报》2008年第3期126-130,共5页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：以重力坝为研究对象,数值模拟分析了钻地武器袭击大坝时的动态响应情况,并分析了大坝在遭受打击后的破坏程度及其安全性问题。数值计算同时涉及静力和动力问题,进行动力分析计算前首先进行静力分析,在静力计算结果的基础上进行侵彻动力分析。侵彻动力分析结束后,建立了侵彻、爆炸联合作用模型,解决了联合计算过程中的边界输入问题,模拟分析了大坝在侵彻及装药爆炸加载下的联合毁伤作用过程。The gravity dam was taken as the researching subject, its dynamic response was simulated under EPW attack in this thesis by numerical simulation method, and the damage degree and safety problem of the dam during the attack were also analyzed. Numerical calculation referred to the dynamic and static problem simultaneously. The implicit static analysis was carried out before the dynamic calculation of penetration, and its result is one of the initial conditions in the dynamic analysis of penetration. The combined action model of penetration and explosion was built after the dynamic analysis of penetration had been finished; the problem of boundary input was also resolved in the combined calculation. The process of combined damage of penetration and explosion when EPW attacking the dam structure was simulated.

关 键 词：混凝土重力坝 侵彻 爆炸 损伤与破坏 数值仿真 

分 类 号：O383.2[理学—流体力学]