| A PENNY-SHAPED CRACK IN AN INFINITE PIEZOELECTRIC BODY UNDER ANTISYMMETRIC POINT LOADS |
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| 作者姓名： | 侯鹏飞 丁皓江 关富玲 |
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| 作者单位： | \ 1 Centre for Spatial Structures，\ 2 Institute of Geotechnical Enginnering，College of Architectural Engineering，Zhejiang University，Hangzhou 310027，China |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＰｉｅｚｏｅｌｅｃｔｒｉｃｃｅｒａｍｉｃｍａｔｅｒｉａｌｓｈａｖｅｍａｎｙａｐｐｌｉｃａｔｉｏｎｓｉｎｍｏｄｅｒｎｔｅｃｈｎｏｌｏｇｉｅｓｂｅｃａｕｓｅｏｆｔｈｅｉｒｅｘｃｅｌｌｅｎｔｐｉｅｚｏｅｌｅｃｔｒｉｃｐｒｏｐｅｒｔｉｅｓ.Ｂｕｔｃｒａｃｋｓａｒｉｓｉｎｇｆｒｏｍｔｈｅｉｒｉｎｔｒｉｎｓｉｃｂｒｉｔｔｌｅｎｅｓｓｏｆ ｔｅｎｃａｕｓｅｐｉｅｚｏｅｌｅｃｔｒｉｃｃｏｍｐｏｎｅｎｔｓｆａｉｌｕｒｅ .Ｓｔｕｄｙｏｆｗｈａｔｃａｕｓｅｓｔｈｉｓｒｅｑｕｉｒｅｓｔｈｅｏｒｅｔ…
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A PENNY-SHAPED CRACK IN AN INFINITE PIEZOELECTRIC BODY UNDER ANTISYMMETRIC POINT LOADS |
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| HOU Peng-fei\ ,DING Hao-jiang\ ,GUAN Fu-ling.A PENNY-SHAPED CRACK IN AN INFINITE PIEZOELECTRIC BODY UNDER ANTISYMMETRIC POINT LOADS[J].Journal of Zhejiang University Science,2001(2). |
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| Authors: | HOU Peng-fei\ DING Hao-jiang\ GUAN Fu-ling |
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| Institution: | HOU Peng-fei\ 1,DING Hao-jiang\ 2,GUAN Fu-ling |
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| Abstract: | In this study, Fabrikant(1989, 1991)'s new results in potential theory were used to obtain the exact and complete solution for the problem of a penny-shaped crack in an infinite transversely isotropic piezoelectric body subjected to antisymmetric point loads (point charges and normal point forces); then the complete solution for the problem of one-sided loading of a penny-shaped crack was obtained by the superposition of the symmetric loading solution in Chen and Shioya (1999) and the antisymmetric one presented here; and then the reciprocity theorem of piezoelectric media was used to deal with the problem of interaction between arbitrarily located point forces and a point charge with a penny-shaped crack and obtained the exact expressions of the crack faces' normal displacement in terms of elementary functions and some non-singular integrals; and finally obtained the normal displacement of the positive and negative faces of the crack under many loading cases as shown in figures for an infinite PZT-4 piezoelectric ceramic body weakened by a penny-shaped crack. |
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| Keywords: | transversely isotropic piezoelectric body penny-shaped crack point force point charge |
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