梁壳组合结构的一种非线性有限元计算方法

摘要

提出了梁壳垂直组合结构在有限元计算中存在的问题，并以几何大变形问题为依托提供了解决该问题的计算原理和有限元方法。数值算例证明了该理论和方法的正确性。该法不仅适用于梁壳组合结构的大变形非线性计算，也适用于静动力小变形问题的线弹性分析计算。%The problems in computing beam-shell-composed structures with the finite element method are pointed out, and a corresponding solution method is proposed based on the finite deformation theory. Numerical examples show the validity and correctness of the present theory. Not only proper for the nonlinear computation of beam-shell-composed structures in large deformation problems, the proposed method is suitable for linear small deformation problems as well.