| 压电材料平面应力状态的直线裂纹问题一般解 |
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| 引用本文： | 侯密山.压电材料平面应力状态的直线裂纹问题一般解[J].力学学报,1997(5). |
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| 作者姓名： | 侯密山 |
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| 作者单位： | 石油大学机械系 |
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| 摘 要： | 研究了含直线裂纹系的压电材料平面应力问题单个裂纹和双裂纹问题的封闭解答表明，在裂纹尖端，应力、电场强度和电位移有１／２阶的奇异性并与前人结果比较了产生电场奇异性的物理因素
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| 关 键 词： | 压电介质，线裂纹，平面应力问题，强度因子，封闭解 |
A GENERAL SOLUTION OF THE PLANE STRESS PROBLEMS IN PIEZOELECTRIC MEDIA WITH LINE CRACKS |
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| Hou Mishan.A GENERAL SOLUTION OF THE PLANE STRESS PROBLEMS IN PIEZOELECTRIC MEDIA WITH LINE CRACKS[J].chinese journal of theoretical and applied mechanics,1997(5). |
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| Authors: | Hou Mishan |
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| Abstract: | Considering continuous boundary condition of electric field at the cracks, a general solution of the plane stress problems in piezoelectric media with line cracks is provided by using function of complex variable and solving Riemann-Hilbert problems Solution in closed form and field intensity factors are given for problems of a single crack and two cracks It is shown from the solution that the stresses and electric field intensity and electric displacement have (1/2) type of singularity at the crack tip These results are compared with some results of previous researches on physics factors of the electric field singularity |
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| Keywords: | piezoelectric media line crack plane stress problem intensity factor solution in closed form |
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