| 压电材料渗透型反平面界面裂纹的奇异因子 |
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| 引用本文： | 刘新民,侯密山.压电材料渗透型反平面界面裂纹的奇异因子[J].工程力学,2000,17(2):18-22. |
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| 作者姓名： | 刘新民 侯密山 |
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| 作者单位： | [1]燕山大学,秦皇岛 [2]石油大学,东营 |
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| 摘 要： | 本文用复变函数解析延展原理,研究了集中载荷作用下的不同压电材料反平面应变 状态的电渗透型界面裂纹的耦合场：对单个裂纹,给出了封闭形式的复函数解和场强度因子。 结果表明,在裂尖处耦合场有（１／２）阶的奇异性。
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| 关 键 词： | 压电材料 裂纹 反平面应变 强度因子 |
INTENSITY FACTORS OF ELECTRICALLY PERMEABLE INTERFACIAL CRACKS OF ANTIPLANE STRAIN PROBLEMS IN BONDED DISSIMILAR PIEZOELECTRIC MATERIALS |
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| LIU Xin-min,HOU Mi-shan.INTENSITY FACTORS OF ELECTRICALLY PERMEABLE INTERFACIAL CRACKS OF ANTIPLANE STRAIN PROBLEMS IN BONDED DISSIMILAR PIEZOELECTRIC MATERIALS[J].Engineering Mechanics,2000,17(2):18-22. |
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| Authors: | LIU Xin-min HOU Mi-shan |
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| Abstract: | Coupling field for antiplane strain problems of the electrically permeable slit cracks between bonded dissimilar piezoelectric materials under concentrated loads is studied using complex function method. Solutions of the complex potentials in closed-form and the field intensity factors are given for a single crack. It is found that the order of singularity at the crack tip in the coupled field is (1/2). |
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| Keywords: | piezoelectric material cracks antiplane strain intensity factor |
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