制导炸弹水平侵彻爆炸作用下混凝土重力坝毁伤效应数值仿真  

Numerical Simulation for the Demage of Concrete Gravity Dam under Horizontal Penetration and Explosion of GBU-28

作　　者：李本平[1] 卢文波[2] 

机构地区：[1]第二炮兵指挥学院,湖北武汉430012 [2]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：《爆破》2007年第1期1-5,共5页Blasting

基　　金：教育部科学技术研究基金(02133);湖北省自然科学基金(2002AB006)

摘　　要：在综合考虑射弹的冲击侵彻作用、破碎弹壳爆炸能损耗、侵彻孔洞对爆轰产物的影响等因素的基础上,通过对制导炸弹GBU-28水平侵彻混凝土重力坝爆炸全过程的三维数值仿真,研究了混凝土重力坝在射弹侵彻爆炸下的动态响应及破坏效应。计算结果表明:侵彻爆炸的毁伤效应主要表现为坝体的局部破坏效应,而且呈现以爆炸作用为主侵彻作用为辅的破坏特征。细长弹药的侵彻爆炸破坏范围的增长主要体现在垂直弹轴方向。The dynamic response and damage effect of concrete gravity dam under penetration and explosion of guided missile were studied by the three-dimensional numerical simulation with guided bomb GBU-28 horizontal penetrating into concrete gravity dam and explosion,considering the penetration process of missile,explosion energy loss of cartridge fragmentation,the influence of penetration holes on the detonation product,etc.The calculating results reveal that penetration and explosion mainly cause partial damage of dam,and the damage is caused primarily by the action of explosion,and the damage effect of penetration is weaker than that of explosion.The growth of the damage scope caused by penetration and explosion is mainly extended in vertical axis-direction of missile.

关 键 词：混凝土重力坝 侵彻爆炸 数值仿真 

分 类 号：TD235.1[矿业工程—矿井建设]