| ANALYSIS OF DAMAGE NEAR A CONDUCTING CRACK IN A PIEZOELECTRIC CERAMIC |
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| 作者姓名： | YangXinhua ChenChuanyao HuYuantai |
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| 作者单位： | [1]DepartmentofMechanics,HuazhongUniversityofScienceandTechnology,Wuhan430074,China [2]StateKeyLaboratoryofStructuralAnalysisofIndustrialEquipment,DalianUniversityofTechnology,Dalian116023,China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (No.10172036)，the Education Ministry Scientific Research Foundation for Returned Overseas Chinese Scholars. |
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| 摘 要： | The finite element formulation for analyzing static damage near a conducting crack in a thin piezoelectric plate is established from the virtual work principle of piezoelectricity. The damage fields under various mechanical and electrical loads are calculated carefully by using an effective iterative procedure. The numerical results show that all the damage fields around a crack tip are fan-shaped and the electric field applied has great influence on the mechanical damage,which is related to the piezoelectric properties.
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| 关 键 词： | 压电陶瓷 非线性有限元方法 机械损伤 电损伤 导电裂缝 |
| 收稿时间： | 23 December 2002 |
ANALYSIS OF DAMAGE NEAR A CONDUCTING CRACK IN A PIEZOELECTRIC CERAMIC |
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| YangXinhua ChenChuanyao HuYuantai.ANALYSIS OF DAMAGE NEAR A CONDUCTING CRACK IN A PIEZOELECTRIC CERAMIC[J].Acta Mechanica Solida Sinica,2003,16(2):147-154. |
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| Authors: | Yang Xinhua Chen Chuanyao Hu Yuantai |
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| Institution: | (1) Department of Mechanics, Huazhong University of Science and Technology, 430074 Wuhan, China;(2) State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, 116023 Dalian, China |
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| Abstract: | The finite element formulation for analyzing static damage near a conducting crack in a thin piezoelectric plate is established from the virtual work principle of piezoelectricity.The damage fields under various mechanical and electrical loads are calculated carefully by using an effective iterative procedure.The numerical results show that all the damage fields around a crack tip are fan-shaped and the electric field applied has great influence on the mechanical damage, which is related to the piezoelectric properties. |
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| Keywords: | piezoelectric ceramic nonlinear finite element method conducting crack mechanical and electrical damage |
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