充满液体弹塑性圆柱壳轴向冲击屈曲的数值模拟  

Numerical simulation of dynamic buckling of liquid filledelasto-plastic cylindrical shell under axial impact

作　　者：张善元[1] 路国运[1] 雷建平[1] 

机构地区：[1]太原理工大学应用力学研究所,太原030024

出　　处：《计算力学学报》2002年第1期36-41,共6页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金项目 ( 196 72 0 39和 10 0 72 0 36 );山西省自然科学基金项目 ( 9710 0 4)

摘　　要：基于对充满液体的弹塑性圆柱壳轴向冲击屈曲的实验观察 ,建立了相应的计算模型 ,借用 LS-DYNA软件包 ,在 HP-C36 0工作站上完成了数值模拟 ,得到了动画显示 ,给出的屈曲模态及一些特征量的时程曲线与实验结果相当一致。文中对壳的几何。On the basis of experimental observation for dynamic buckling of liquid filled cylindrical shells under axial impact, corresponding computation model is constructed. Using LS DYNA computer code, the numerical simulation and graphic display of whole dynamic process are carried out by HP C360 workstation. The buckling mode and the time history curves of impact force and liquid pressure obtained by simulation are quite consistent with experimental results. The effects of geometric and physical parameters on buckling behavior are discussed in detail.

关 键 词：充液柱壳 冲击屈曲 数值模拟 轴向冲击 屈曲模态 时程曲线 LS-DYDA软件包 弹塑性圆柱壳 

分 类 号：O344.7[理学—固体力学]