| 正交各向异性平板开孔弹性波的衍射与动应力集中 |
| |
| 引用本文： | 马兴瑞,胡超,王本利,牛玉清.正交各向异性平板开孔弹性波的衍射与动应力集中[J].力学学报,1997,29(3):269-277. |
| |
| 作者姓名： | 马兴瑞 胡超 王本利 牛玉清 |
| |
| 作者单位： | 哈尔滨工业大学航天工程与力学系 |
| |
| 基金项目： | 国家自然科学基金,国家教委博士点基金 |
| |
| 摘 要： | 采用各向异性平板弯曲波动方程及摄动方法，对正交各向异性无限平板开孔弹性波的衍射及动应力集中的问题进行了分析研究，得到了在稳态波作用下此种忆边界条件波动问题的渐近形式分析解。同时采用复变函数方法及保角映射技术，为求解正交各向异性无限平板开孔弹性波的衍射及动力集中问题提供了一种统一规范的分析方法。
|
| 关 键 词： | 正交各向异性 平板 弹性波衍射 动应力集中 |
DIFFRACTION OF FLEXURAL WAVES AND DYNAMIC STRESS CONCENTRATIONS IN ORTHOTROPIC PLATES WITH AN ARBITRARY CUTOUT |
| |
| Ma Xingrui,Hu Chao,Wang Benli,Niu Yuqing.DIFFRACTION OF FLEXURAL WAVES AND DYNAMIC STRESS CONCENTRATIONS IN ORTHOTROPIC PLATES WITH AN ARBITRARY CUTOUT[J].chinese journal of theoretical and applied mechanics,1997,29(3):269-277. |
| |
| Authors: | Ma Xingrui Hu Chao Wang Benli Niu Yuqing |
| |
| Abstract: | In this paper, based on the governing equation for flexural waves of orthotropic plates, diffraction of elastic waves by cutouts and dynamic stress concentrations in the thin plate has been studied. An analytic method to solve dynamic stress concentrations in the plate with an arbitrary cutout is established. An asymptotic expansion solution that satisfies the boundary conditions on the edge of cutouts is obtained. Therefore the solution of the problem can be normalized by means of this method. Numerical results for dynamic moment factors of plates with circular and elliptic cutouts are presented. |
| |
| Keywords: | orthotropic plate perturbation method arbitrary cutout diffraction of flexural waves dynamic stress concentration |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《力学学报》浏览原始摘要信息 |
|
点击此处可从《力学学报》下载全文 |
