INVESTIGADORES
CISILINO Adrian Pablo
artículos
Título:
Boundary Element Analysis of Three-Dimensional Mixed-Mode Cracks Via the Interaction Integral.
Autor/es:
A.P.CISILINO; J.E. ORTIZ
Revista:
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Editorial:
Elservier
Referencias:
Lugar: Amsterdam; Año: 2005 vol. 194 p. 935 - 956
ISSN:
0045-7825
Resumen:
A three-dimensional boundary element method (BEM) implementation of the interaction integral methodology for the numerical analysis of mixed-mode three-dimensional cracks is presented in this paper. The interaction integral isevaluated from a domain representation naturally compatible with the BEM, since stresses, strains and derivativesof displacements at internal points can be evaluated using their appropriate boundary integral equations. Special emphasis is put in the selection of the auxiliary function that represents the virtual crack advance in the domain integral.This is found to be a key feature to obtain reliable results at the intersection of crack fronts with free surfaces. Several examples are analysed to demonstrate the efficiency and accuracy of the implementation.
