| 压电界面裂纹裂尖强度因子的显式计算公式 |
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| 引用本文： | 仲红俊,雷钧,张传增. 压电界面裂纹裂尖强度因子的显式计算公式[J]. 计算力学学报, 2013, 30(3): 418-421,436 |
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| 作者姓名： | 仲红俊 雷钧 张传增 |
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| 作者单位： | 1. 北京工业大学工程力学系,北京,100124
2. 德国锡根大学土木工程系,锡根D-57068 |
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| 基金项目： | 国家自然科学基金(11002006);教育部博士点学科专项科研基金(20091103120002)资助项目. |
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| 摘 要： | 对常见横观各向同性压电材料(TIP)中界面裂纹的裂纹面与压电材料的极化方向成任意夹角的一般情况进行了研究,通过推导得到了计算裂尖强度因子的显式外推公式,同时给出了裂纹面与极化方向垂直的典型情况下的外推公式.这些显式计算公式为常见数值方法如有限元法及边界元法在压电材料断裂力学中的应用提供了便利.
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| 关 键 词： | 界面裂纹 裂尖强度因子 横观各向同性 压电材料 |
| 收稿时间： | 2012-03-19 |
| 修稿时间： | 2012-06-04 |
Determination of intensity factors for interfacial cracks in TIP materials |
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| ZHONG Hong-jun,LEI Jun and ZHANG Chuan-zeng. Determination of intensity factors for interfacial cracks in TIP materials[J]. Chinese Journal of Computational Mechanics, 2013, 30(3): 418-421,436 |
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| Authors: | ZHONG Hong-jun LEI Jun ZHANG Chuan-zeng |
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| Affiliation: | Department of Engineering Mechanics, Beijing University of Technology, Beijing 100124, China;Department of Engineering Mechanics, Beijing University of Technology, Beijing 100124, China;Department of Civil Engineering, University of Siegen, D-57068 Siegen, Germany |
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| Abstract: | An explicit extrapolating formula for a general case of the interfacial crack plane lying with an angle to the poling axis in transversely isotropic piezoelectric (TIP) materials is derived,which is very feasible to determine the crack-tip intensity factors for numerical methods such as FEM or BEM.Additionally,a more concise extrapolating formula for the typical state of the interfacial crack plane lying perpendicular to the poling axis is also presented in this paper. |
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| Keywords: | interfacial crack intensity factors transversely isotropic piezoelectric |
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