Cylindrical interface cracks in 1-3 piezocomposites

被引：22
作者：
Sapsathiarn, Y. [1 ,2 ]
Senjuntichai, T. [1 ]
Rajapakse, R. K. N. D. [2 ]
机构：
[1] Chulalongkorn Univ, Dept Civil Engn, Bangkok 10330, Thailand
[2] Simon Fraser Univ, Fac Sci Appl, Burnaby, BC V5A 1S6, Canada
来源：
COMPOSITES PART B-ENGINEERING | 2012年 / 43卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Ceramic-matrix composites (CMCs); Smart materials; Fracture; Interface/interphase; FIBER; COMPOSITES;
D O I：
10.1016/j.compositesb.2012.01.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
1-3 Piezocomposites are made by embedding piezoelectric fibers/rods in polymer matrix materials. Fiber-matrix interface fracture can affect the performance of piezocomposites. In this paper, axisymmetric interfacial cracks in piezocomposites are studied by considering an idealized model of a single piezoelectric fiber in a matrix material. The displacement discontinuity method is used to formulate the Model and II crack problems. The fundamental solutions required for DDM are derived explicitly by using the electroelastic field equations and Fourier integral transforms. The dependence of Mode I and II stress intensity factors of single and multiple interface cracks on fiber and matrix material properties, crack length and distance between cracks are investigated. (C) 2012 Elsevier Ltd. All rights reserved.
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页码：2257 / 2264
页数：8
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