侧向爆炸荷载下金属圆柱壳动力屈曲模态的实验研究  

Test for dynamic buckling modes of a metallic cylindrical shell subjected to lateral explosion

作　　者：高福银[1,2] 龙源[1] 纪冲[1] 路亮[1] 

机构地区：[1]解放军理工大学,南京210007 [2]南昌陆军学院,南昌330103

出　　处：《振动与冲击》2013年第24期117-121,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金项目(11102233;51178460)

摘　　要：对金属圆柱壳在其中心部位经受75 g柱状TNT炸药侧向爆炸冲击时的动力屈曲进行了实验研究,系统分析了3种壁厚的金属圆柱壳在不同爆炸距离下受侧向爆炸冲击的变形历程、最终变形模式和能量分配方式。得出金属圆柱壳受侧向爆炸载荷时的4种典型屈曲模式及其相应的屈曲参数指标值,为金属柱壳结构爆炸破坏分级及结构抗爆设计提供了实验依据。Tests were presented for dynamic buckling modes of a metallic cylindrical shell impacted laterally by explosion of 75g cylindrical TNT dynamite at its mid-point. For the metallic cylindrical shell with three thicknesses under different distance of explosion, its deformation time history, final modes and energy distributions were studied. The buckling parameters corresponding to its four kinds of typical buckling modes were obtained. The test results provided a reference for classification of explosion local damage of metallic cylindrical shells and design of local-damage-resistance structures.

关 键 词：爆炸力学 圆柱壳 侧向局部冲击 动力屈曲 变形模式 

分 类 号：O383[理学—流体力学] E932.2[理学—力学]