计算力学学报2012，Vol.29Issue(4)：517-521,5.
压电复合材料粘接界面断裂有限元模拟
FEM simulation of adhesive interface fracture in piezoelectric composite
摘要
Abstract
Based on FRMM （Fix-Ratio Mix-Mode） fracture test and digital imaging system, we obtained the interface fracture toughness and displacement and strain fields of piezoelectric composite specimens. Through nonlinear finite element software ABAQUS and the user subroutine UMAT,the finite element simulations based on cohesive zone concept （CZM） for piezoelectric composite materials interface crack initiation and propagation are performed, and the load-displacement curves are close to the test results comparing with VCCT methods,but there are some differences in crack propagation path and it is needed for further modification in cohesive law. In addition, the finite element analysis shows that the interface bond strength and interface stiffness have a big effect on the calculation results. Our study demonstrates that cohesive zone model can well characterize the interface debonding fracture of piezoelectric composite materials with a weak bonding interface.关键词
压电复合材料/粘聚区模型/界面断裂/脱胶Key words
piezoelectric composite/cohesive zone model/interface fraeture/debonding分类
航空航天引用本文复制引用
王亮,白瑞祥,雷振坤,陈浩然..压电复合材料粘接界面断裂有限元模拟[J].计算力学学报,2012,29(4):517-521,5.基金项目
国家自然科学基金 （）
中央高校基本科研业务费专项资金（DUT11ZD（G）01）资助项目. （）
