摘要
把具有加强筋的弹性平面问题转化为含有初应力的平面弹性问题，使原 来不均匀的弹性平面问题转化为可以用线性边界元直接求解的弹性平面问 题。本方法不增加边界元方程的未知数，加强筋的影响只体现在矩阵Ｈ和Ｇ 中。算例表明本方法是有效的。
BEM for analysis of elastic plane problems with reinforced ribs is presented. Nonhomogeneous elastic plane problems are transfered to the homogeneous elastic plane problems with initial stresses which can be solved by BEM. The number of boundary element equations is not increased. The influences of reinforced ribs on boundary element equations is accumulated in matrixes H, G. Examples show that the method is effective and the accuracy of computed results is satisfactory.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1992年第2期136-143,共8页
Journal of Dalian University of Technology
关键词
边界元法
加强筋
弹性
平面问题
finite element methods
reinforced ribs/boundary element method
