Boundary element analysis of three-dimensional mixed-mode thermoelastic crack problems using the interaction and energy domain integrals

被引：4
|
作者：
Balderrama, R. [2 ]
Cisilino, A. P. [1 ]
Martinez, M. [2 ]
机构：
[1] Univ Nacl Mar Plata, Welding & Fracture Div, CONICET, INTEMA, RA-7600 Mar Del Plata, Argentina
[2] Cent Univ Venezuela, Sch Mech Engn, Caracas, Venezuela
来源：
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 2008年 / 74卷 / 02期
关键词：
fracture mechanics; thermoelasticity; mixed-mode fracture; boundary elements; interaction integral;
D O I：
10.1002/nme.2168
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A three-dimensional boundary element method (BEM) implementation of the interaction integral methodology for the numerical analysis of mixed-mode three-dimensional thermoelastic crack problems is presented in this paper. The interaction integral is evaluated from a domain representation naturally compatible with the BEM, since stresses, strains, temperatures and derivatives of displacements and temperatures at internal points can be evaluated using the appropriate boundary integral equations. Several examples are analysed and the results compared with those available in the literature to demonstrate the efficiency and accuracy of the implementation to solve straight and curved crack-front problems. Copyright (C) 2007 John Wiley & Sons, Ltd.
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页码：294 / 320
页数：27
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