摘要
采用性能良好的离散克希霍夫三角形板壳单元，推导了非线性公式，包 括几何和物理两种非线性，可用于计算非线性平衡路径和极值载荷，给出非 线性分支屈曲分析。计算了几个算例，与已有的结果有良好的符合。
A finite-element formulation is presented for geometric and material nonlinear strength and stability analysis of plate and shell. The triangular plate element based on discrete Kirchhoff assumption is used. The element stiffness matrix and geometric matrix are expressed as explicit function. The program developed is used for computing stress, bifurcation buckling load and limit buckling load. Some numerical results for stress and stability are obtained for plate, shells and cone-cylinder jointed shells.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1992年第2期144-150,共7页
Journal of Dalian University of Technology
关键词
壳
屈曲
有限元法
非线性
finite element
nonlinearity
buckling of a shell
