Variational asymptotic micromechanics modeling of heterogeneous piezoelectric materials

被引:52
|
作者
Tang, Tian [1 ]
Yu, Wenbin [1 ]
机构
[1] Utah State Univ, Dept Mech & Aerosp Engn, Logan, UT USA
基金
美国国家科学基金会;
关键词
piezoelectric heterogeneous materials; variational asymptotic method; mircomechanics; VAMUCH;
D O I
10.1016/j.mechmat.2008.04.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper, a new micromechanics model is developed to predict the effective properties and local fields of heterogeneous piezoelectric materials using the variational asymptotic method for unit cell homogenization (VAMUCH), a recently developed micromechanics modeling technique. Starting from the total electric enthalpy of the heterogenous continuum, we formulate the micromechanics model as a constrained minimization problem using the variational asymptotic method. To handle realistic microstructures in engineering applications, we implement this new model using the finite element method. For validation, a few examples are used to demonstrate the application and accuracy of this theory and the companion computer program - VAMUCH. (c) 2008 Elsevier Ltd. All rights reserved.
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收藏
页码:812 / 824
页数:13
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