| 压电陶瓷非线性断裂的有限元分析 |
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| 引用本文： | 潘亦苏,陈大鹏. 压电陶瓷非线性断裂的有限元分析[J]. 西南交通大学学报, 2000, 35(5): 451-456 |
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| 作者姓名： | 潘亦苏 陈大鹏 |
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| 作者单位： | 西南交通大学工程科学研究院,四川,成都,610031 |
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| 摘 要： | 提出了一个简单的包含有极化反转及电饱和影响的压电材料的本构模型。在此基础上实施了非线性有限元分析，并以局部Ｊ积分作为断裂准则，导出了作用电场与断裂载荷的关系曲线，其趋势与Ｐａｒｋ和Ｓｕｎ的实验观察现象相一致。
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| 关 键 词： | 有限元法 压电陶瓷 电饱和 极化反转 |
Finite Element Analysis of Nonlinear Fracture for Piezoelectric Ceramics |
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| PAN Yi-su,CHEN Da-peng. Finite Element Analysis of Nonlinear Fracture for Piezoelectric Ceramics[J]. Journal of Southwest Jiaotong University, 2000, 35(5): 451-456 |
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| Authors: | PAN Yi-su CHEN Da-peng |
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| Abstract: | A nonlinear constitutive model for piezoelectric ceramics is proposed, in which the polarization switching and electric saturation are taken into account. Based on the model, the nonlinear finite element analysis is implemented. Using local J integral as a fracture criterion, a relation curve of fracture loads against electric fields is obtained. Qualitatively, the curve is in agreement with the experimental observations reported by Park and Sun. [WT5HZ] |
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| Keywords: | fracture finite element method piezoelectric ceramics electric saturation polarization switching |
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