含孔薄板弯曲波动的双互易边界元法

高锁文; 汪越胜; 章梓茂; 马兴瑞

含孔薄板弯曲波动的双互易边界元法

北京交通大学工程力学研究所,北京 100044;2.中国航天科技集团公司,北京 100037

详细信息

作者简介:
高锁文(1963- ),男,河北人,副教授,博士(联系人.Tel:+86-10-68381024;E-mail:bjgsw@sina.com)

中图分类号: O347.4
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出版历程
- 收稿日期: 2004-06-25
- 修回日期: 2005-09-01
- 刊出日期: 2005-12-15

Dual Reciprocity Boundary Element Method for Flexural Waves in Thin Plate With Cutout

In stitute of Engineering Mechanics, Beijing Jiaotong Univer sity, Beijing 100044, P. R. China;

摘要

摘要: 采用双互易边界元法对开孔无限大薄板弹性波的散射与动应力集中问题进行理论分析和数值计算．基于功的互等定理，采用静力基本解建立了薄板弯曲波动问题的双互易边界积分方程．作为数值算例，计算了圆孔附近的动应力集中系数，通过与已有结果进行比较，表明该方法简单有效并能够保证计算精度．
- 薄板 /
- 双互易边界元法 /
- 弯曲波的散射 /
- 动应力集中
Abstract: The theoretical analysis and numerical calculation of scattering of elastic waves and dynamic stress concentrations in the thin plate with the cutout was studied usingdual reciprocity boundary element method (DRM).Based on the work equivalent law,the dual reciprocity boundary integral equations for flexural waves in the thin plate were established using static fundamental solution.As illustration,numerical results for the dynamic stress concentration factors in the thin plate with a circular hole are given.The results obtained demonstrate good agreement with other reported results and show high accuracy.
- thin plate /
- DRM /
- scattering of flexural wave /
- dynamic stress concentration

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参考文献(16)

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