摘要
圆柱壳结构在各种工程建设中是一种广泛采用的结构形式 .而柱壳结构在外压作用下往往发生失稳屈曲破坏 ,在经济上造成极大的损失 .对于这类问题的分析 ,如果采用一般有限元法 ,无论在壳体几何形状模拟 ,还是失稳位形描述都将遇到难以克服的困难 .提出的半解析柱壳有限条元法 ,保证了壳体离散时几何形状表示上与实际结构相一致 ,并且具有失稳位形描述简单、计算自由度少、精度高。
Cylinder shell structure is used widely. Instability breach happened frequently and brought on losing .To this kind of stability problem , if the common finite element method is used, the difficulty of simulation of the shell geometric shape and the description of the shell shape after losing stability can not be overcome. In the paper, the semi-analysis cylinder shell finite strip method can guarantee the consistency of the shell structure with description of the shell geometric shape when the shell is dispersed, and has the advantages of the simple description, less freedom, high precise ,less computation time spending.[WX(5KG0,41]
出处
《华北水利水电学院学报》
2000年第1期32-34,43,共4页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
圆柱壳
稳定性
柱壳有限条元
柱壳结构
外压作用
cylindrical shell
stability
semi-analysis finite element method
cylinder shell finite strip method
