拱形结构在射弹侵彻作用下的动力响应分析  

The analysis of the dynamic response of the arch structure subjected to the projectile penetration

作　　者：颉凯[1,2] 邵式亮[1] 颜祥程[1] 

机构地区：[1]空军工程大学工程学院机场建筑工程系 [2]93856部队

出　　处：《四川建筑科学研究》2012年第5期31-34,共4页Sichuan Building Science

摘　　要：为了研究钢纤维混凝土拱形结构和花岗岩拱形结构在射弹侵彻作用下不同的动力响应情况,利用非线性动力有限元分析软件,模拟了长杆射弹对这两种拱形结构正侵彻作用的详细过程,分析了射弹在侵彻过程中的加速度变化以及拱形结构的应力变化情况。分析的结果表明,射弹在相同的速度下侵彻这两种拱形结构时,钢纤维混凝土拱形结构比花岗岩拱形结构有更好的抗侵彻性能。In order to study the different dynamic responses to the projectile penetration between the steel fiber concrete arch structure and the granite arch structure,the non-linear dynamical finite element analysis software was used to simulate the particular process of the projectile penetration to the two arch structures.It analyzed the acceleration changes of the projectile and the stress changes of the arch structure during the penetration.According to the analysis it could be found that,under the penetration of projectile at the same speed,the resistance to the penetration of the steel fiber concrete arch structure was better then that of the granite arch structure.

关 键 词：拱形结构 侵彻 数值模拟 动力响应 

分 类 号：TU37[建筑科学—结构工程]