Coupled and uncoupled analyses of piezoelectric free-edge effect in laminated plates

被引：29
|
作者：
Artel, J [1 ]
Becker, W [1 ]
机构：
[1] Tech Univ Darmstadt, Inst Mech, D-64289 Darmstadt, Germany
来源：
COMPOSITE STRUCTURES | 2005年 / 69卷 / 03期
关键词：
free-edge effect; piezoelectricity; interlaminar stresses; finite element method;
D O I：
10.1016/j.compstruct.2004.07.015
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The present paper considers the effect of electromechanical coupling on the interlaminar stresses and the electric field strengths at free edges of laminated plates with piezoelectric material properties. A comparison of coupled and uncoupled piezoelectric analyses is performed using the finite element method. Two symmetric cross-ply plates and one symmetric angle-ply laminate are investigated under uniaxial tension. It is shown that the interlaminar stresses at the free edge are significantly higher in the coupled case for cross-ply laminates, whereas the coupling effect for the symmetric angle-ply laminate is of minor significance. In addition, the occurrence of electric field strengths with singular character is revealed. (c) 2004 Elsevier Ltd. All rights reserved.
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页码：329 / 335
页数：7
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