摘要
本文在文献[1]的基础上,提出了壳体弯曲分析中的广义协调元。推导了具有24个自由度的矩形单元与18个自由度的三角形单元两种平板型壳体广义协调元。算例表明,广义协调壳体单元具有自由度少、精度较高、程序简便等优点。并能在任意网格划分下收敛于精确解。是一种可靠实用的壳体分析单元。
A generalized conforming element for analysis of thin shells is presented in this paper. In this method the inter-element compatibility in the sense of average displacement is ensured. Two types of generalized conforming element for analysis of thin shells——the rectangular element with 24 degrees of freedom and the triangular element with 18 degrees of freedom are developed.The advantages of the generalized conforming element for analysis of thin shells are: less degrees of freedom, higher precision of solution and easier in preparing programme. The convergence to the exact solution is ensured for arbitrary grid subdivisions.
出处
《土木工程学报》
EI
CSCD
北大核心
1990年第2期11-20,共10页
China Civil Engineering Journal
