THE BEHAVIOR OF TWO PARALLEL SYMMETRIC PERMEABLE CRACKS IN PIEZOELECTRIC MATERIALS

作     者：ZHOU Zhen-gong(周振功) WANG Biao(王彪) 

作者机构：P O Box 2147 Center for Composite Materials and Electro-Optics Research CenterHarbin Institute of Technology Harbin 150001 P R China P O Box 2147 Center for Composite Materials and Electro-Optics Research CenterHarbin Institute of Technology Harbin 150001 P R China 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2002年第23卷第12期

页      面：1357-1366页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：theNationalNaturalScienceFoundationforExcellentYoungInvestigators( 1 972 52 0 9) theNaturalScienceFoundationofHeilongjiangProvince thePostDoctoralScienceFoundationofHeilongjiangProvince 

主　　题：piezoelectric material parallel crack Schmidt method dual-integral equation stress and electric displacement intensity factors 

摘      要：The behavior of two parallel symmetric cracks in piezoelectric materials under anti-plane shear loading was studied by the Schmidt method for the permeable crack face conditions. By using the Fourier transform, the problem can be solved with two pairs of dual integral equations in which the unknown variable is the jump of the diplacement across the crack surfaces. These equations were solved using the Schmidt method. The results show that the stress and the electric displacement intensity factors of cracks depend on the geometry of the crack. Contrary to the impermeable crack surface condition solution, it is found that the electric displacement intensity factors for the permeable crack surface conditions are much smaller than the results for the impermeable crack surface conditions.