摘要
采用考虑耦合和剪切效应的三结点十五参数罚函数层合板壳单元和与之相适应的两结点非协调层合梁单元,适用于任意加筋复合材料层合板壳的稳定性分析。数值计算表明:该单元不仅对边界形状的适应性强,而且在工程精度范围内具有简单、经济、高效的优点.
A fifteen-variable quasi-conforming triangle element including coupling and transverse shear effect and two-nodes incompatible beam element are used for the buckling analysis of stiffened composite laminated shells in this paper.A variety of numerical examples are presented to demonstrate that this approach can well be applied to the irregular boundary and has the advantages of simplicity,efficiency and acceptable accuracy.
出处
《应用力学学报》
CAS
CSCD
北大核心
1993年第4期113-117,共5页
Chinese Journal of Applied Mechanics
基金
国家自然科学基金
关键词
稳定性
复合材料
结构力学
壳体
stiffened shells
buckling
finite element model
