摘要
本文采用非线性有限元方法,在经典刚塑性理论的基础上,考虑了材料非线性、大变形效应对材料的影响,利用大型通用程序LS-DYNA对圆柱壳轴向冲击屈曲过程进行了计算机仿真分析。分析表明,利用非线性有限元数值仿真方法,可以对圆柱壳屈曲这一复杂的力学过程进行真实有效的模拟再现。
Non-linear FEM is adopted to study the dynamic progress of the cylindrical shells ,in which the non-linearity of large deformation and plastic effort are considered on the basis of rigid-plastic theory.The whole process of the axial impact buckling of cylindrical shell is Simulated using LS-DYNA computer code.The analysis indicates that it is effective to study dynamic response of the impact structure by numerical simulation.
出处
《微计算机信息》
北大核心
2007年第31期199-200,共2页
Control & Automation
基金
受撞击高压容器失效研究(20031024)
关键词
圆柱壳
轴向冲击
动力屈曲
非线性有限元
计算机仿真
cylindrical shell,axial impact,dynamic buckling,non-line FEM,computer simulation
