| 压电梯度材料薄板中切口端部场的有限元分析 |
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| 引用本文： | 谢迎洪,李振环,杨文兵,王乘.压电梯度材料薄板中切口端部场的有限元分析[J].华中科技大学学报(自然科学版),2003,31(7):83-85. |
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| 作者姓名： | 谢迎洪 李振环 杨文兵 王乘 |
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| 作者单位： | 华中科技大学力学系 |
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| 基金项目： | 国家自然科学基金资助项目 (A10 0 2 0 0 6) |
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| 摘 要： | 研究了力电耦合载荷作用下，压电梯度材料双边切口薄板中切口前缘应力场的分布及其应力集中效应，重点讨论了外加电场、切口张开角、切口深度以及材料梯度分布特性的变化对切口前缘应力场的影响，计算结果表明：在不同的外加电场作用下，切口张开角度、切口深度和材料的梯度变化等对切口尖端应力集中因子、切口前缘的应力分布都有一定的影响，所得结果对压电梯度材料的抗疲劳断裂设计有参考价值。
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| 关 键 词： | 压电功能梯度材料 应力场 切口深度 |
| 文章编号： | 1671-4512(2003)07-0083-03 |
| 修稿时间： | 2002年12月29 |
Finite element analysis of crack functionally graded piezoelectric plates |
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| Xie Yinghong,Li Zhenhuan,Yang Wenbing,Wang Cheng.Finite element analysis of crack functionally graded piezoelectric plates[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(7):83-85. |
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| Authors: | Xie Yinghong Li Zhenhuan Yang Wenbing Wang Cheng |
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| Institution: | Xie Yinghong Li Zhenhuan Yang Wenbing Wang Cheng |
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| Abstract: | The crack tip field of piezoelectric functionally gra de d plate was investigated when applied far-field electrical and mechanical loadi ngs simultaneously. The influences of applied electric field, the opening angle of the crack, the crack length, as well as the distribution of materials propert y on the stress field of crack tip were discussed. All these phenomena can be co nfirmed by finite element analysis. The obtained results are also valuable in de signs. |
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| Keywords: | functionally graded piezoelectric materials stress field crack length Xie Yinghong Postgraduate Dept of Mechanics Huazhong Univ of Sci & Tech Wuhan 430074 China |
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