三维编织压电陶瓷基复合材料有效电弹性性能有限元分析

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (3): 11-16.

三维编织压电陶瓷基复合材料有效电弹性性能有限元分析

马宵, 魏高峰^*

齐鲁工业大学机械与汽车工程学院,济南250353

收稿日期:2016-09-18 出版日期:2017-03-28 发布日期:2017-03-28
通讯作者: 魏高峰(1968-),男,博士,教授,主要从事复合材料方面的研究,weigaofeng@126.com。
作者简介:马宵(1988-),男,硕士研究生,主要从事压电陶瓷基复合材料方面的研究。
基金资助:
国家自然科学基金项目(11271234)

FINITE ELEMENT ANALYSIS FOR EFFECTIVE ELECTRO-ELASTIC PROPERTIES OF THREE-DIMENSIONAL BRAIDED PIEZOELECTRIC CERAMIC MATRIX COMPOSITES

MA Xiao, WEI Gao-feng^*

School of Mechanical and Automotive Engineering, Qilu University of Technology, Jinan 250353, China

Received:2016-09-18 Online:2017-03-28 Published:2017-03-28

摘要/Abstract

摘要： 基于三维编织预制件的细观结构,建立了三维编织压电陶瓷基复合材料位移-电耦合场有限元模型,利用电弹性场体积平均思想和有限元方法研究了周期分布三维编织压电陶瓷基复合材料的有效电弹性性能。通过对代表性体积单元施加位移载荷和电载荷边界条件,预测了不同纤维体积分数下三维编织压电陶瓷基复合材料的有效弹性常数、压电常数和介电常数。计算结果表明,三维编织压电陶瓷基复合材料可显著改善压电陶瓷的整体力学性能,且保持了较好的电学性能。

关键词: 三维编织复合材料, 位移-电耦合场, 有效电弹性性能, 有限元方法

Abstract: Based on the microstructure of three-dimensional (3-D) braided perform, the electro-elastic coupling field volume average theory and finite element method, the effective electro-elastic properties of 3-D braided piezoelectric ceramic matrix composites are studied, and a finite element model of 3-D braided piezoelectric ceramic matrix composites in displacement-electric coupling field is established. By applying the displacement load and electric load boundary conditions to the representative volume element of the composites, the effective elastic coefficients, piezoelectric coefficients and dielectric coefficients of 3-D braided piezoelectric ceramic matrix composites with different fiber volume fraction are predicted. Numerical results illustrate that 3-D braided piezoelectric ceramic matrix composites can improve the overall mechanical properties of the piezoelectric ceramic significantly, and the good electrical properties are maintained.

Key words: three-dimensional braided composites, displacement-electric coupling field, effective electro-elastic properties, finite element method

中图分类号:

TB332

马宵, 魏高峰. 三维编织压电陶瓷基复合材料有效电弹性性能有限元分析[J]. 玻璃钢/复合材料, 2017, 0(3): 11-16.

MA Xiao, WEI Gao-feng. FINITE ELEMENT ANALYSIS FOR EFFECTIVE ELECTRO-ELASTIC PROPERTIES OF THREE-DIMENSIONAL BRAIDED PIEZOELECTRIC CERAMIC MATRIX COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2017, 0(3): 11-16.

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