| 边界元法分析具有加强筋的弹性平面问题 |
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| 引用本文： | 吕和祥,陈玉林.边界元法分析具有加强筋的弹性平面问题[J].大连理工大学学报,1992,32(2):136-143. |
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| 作者姓名： | 吕和祥 陈玉林 |
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| 作者单位： | 大连理工大学工程力学系
(吕和祥，陈玉林)，大连理工大学应用数学系(陈桂芝) |
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| 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。
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| 关 键 词： | 边界元法 加强筋 弹性 平面问题 |
BEM for analysis of elastic plane problems with reinforced ribs |
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| Abstract: | 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. |
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| Keywords: | finite element methods reinforced ribs/boundary element method |
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