| TRANSIENT RESPONSE OF COPLANAR INTERFACIAL CRACKS BETWEEN TWO DISSIMILAR PIEZOELECTRIC STRIPS UNDER ANTI-PLANE MECHANICAL AND IN-PLANE ELECTRICAL IMPACTS |
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| 作者姓名： | RayK.L.Su FengWenjie LiuJinxi ZouZhenzhu |
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| 作者单位： | [1]DepartmentofCivilEngineering,TheUniversityofHongKong,PokfulamRoad,HongKong,China [2]DepartmentofMechanicsandEngineeringScience,ShijiazhuangRailwdyInstitute,Shijiazhuang050043,China |
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| 基金项目： | Project supported by the Research Grants Council of the Hong Kong Special Administrative Region,China(No.HKUT014/00E)，the National Natural Science Foundation of China(No.19772029). |
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| 摘 要： | The dynamic response of multiple coplanar interface cracks between two dissimilar piezoelectric strips subjected to mechanical and electrical impacts is investigated. Solutions to two kinds of electric boundary conditions on crack surfaces, i.e. electric impermeable and electric permeable, are obtained. Laplace and Fourier transforms and dislocation density functions are employed to reduce the mixed boundary value problem to Cauchy singular integral equations,which can be solved numerically. The effects of electrical load, geometry criterion of piezoelectric strips, relative location of cracks and material properties on the dynamic energy release rate are examined.
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| 关 键 词： | 动力响应 多体共面界面断裂 压电带 动能衰减率 整体传输 固体力学 |
| 收稿时间： | 1 November 2002 |
TRANSIENT RESPONSE OF COPLANAR INTERFACIAL CRACKS BETWEEN TWO DISSIMILAR PIEZOELECTRIC STRIPS UNDER ANTI-PLANE MECHANICAL AND IN-PLANE ELECTRICAL IMPACTS |
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| RayK.L.Su FengWenjie LiuJinxi ZouZhenzhu.TRANSIENT RESPONSE OF COPLANAR INTERFACIAL CRACKS BETWEEN TWO DISSIMILAR PIEZOELECTRIC STRIPS UNDER ANTI-PLANE MECHANICAL AND IN-PLANE ELECTRICAL IMPACTS[J].Acta Mechanica Solida Sinica,2003,16(4):300-312. |
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| Authors: | Ray KLSu |
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| Institution: | (1) Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China;(2) Department of Mechanics and Engineering Science, Shijiazhuang Railway Institute, 050043 Shijiazhuang, China |
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| Abstract: | The dynamic response of multiple coplanar interface cracks between two dissimilar piezoelectric strips subjected to mechanical and electrical impacts is investigated.Solutions to two kinds of electric boundary conditions on crack surfaces,i.e.electric impermeable and electric permeable,are obtained.Laplace and Fourier transforms and dislocation density functions are employed to reduce the mixed boundary value problem to Cauchy singular integral equations, which can be solved numerically.The effects of electrical load,geometry criterion of piezoelectric strips,relative location of cracks and material properties on the dynamic energy release rate are examined. |
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| Keywords: | coplanar interface cracks dissimilar piezoelectric strips singular integral equations integral transform dynamic energy release rate |
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