有初始几何缺陷的壳体弹塑性大变形分析  

Elastoplastic Large Deformation Analysis ofShell with Initial Geometric Imperfections

作　　者：刘锋[1] 李丽娟[1] 梅占馨[1] 万虹[1] 

机构地区：[1]青岛化工学院,西安冶金建筑学院

出　　处：《应用力学学报》1995年第4期136-139,共4页Chinese Journal of Applied Mechanics

基　　金：山东省自然科学基金青年基金

摘　　要：在等温小变形弹塑性内时本构方程偏量形式的基础上，导出了适用于大位移、小应变分析的弹塑性内时本构方程。并导出了带有初始几何缺陷的非线性弹塑性问题的有限元方程。文中给出的算例表明本方法是可行有效的。On the basis of elastoplastic constitutive equations of intrinsic time applying to isotemperature andsmall deformations,this paper has deduced constitutive equations suitable for the case of large dis-placements but small strains.The paper also presents the finite element equations of elastoplastic largedeformation problems with initial geometric imperfections.An example is provided at the end of pa-per.

关 键 词：初始缺陷 内蕴时间 弹塑性 大变形 

分 类 号：O344.3[理学—固体力学]