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Title: A comparative study of three boundary element approaches to transient dynamic crack problems
Authors: Chirino, Francisco 
Gallego, Rafael
Sáez, Andrés
Domínguez, José
Issue Date: 1994
Publisher: 0955-7997
Journal: Engineering Analysis with Boundary Elements 
Abstract: Using displacement integral representations for time dependent elastic problems, three different boundary element (BE) approaches can be considered. One is based on the time domain formulation, a second one on the frequency domain formulation, and the third on the dual reciprocity formulation. In this paper, the three BE approaches are applied and compared when used for the computation of stress intensity factors (SIF) of stationary cracks under dynamic loading. In the three cases a quadratic discretization in space and a singular quarter-point (SQP) element are used. Several problems are solved and the results obtained by the three approaches compared. The dual reciprocity approach for dynamic SIF computation is presented in this paper. Conclusions and recommendations on the capabilities of the three approaches in dynamic fracture mechanics are presented. © 1994.
ISSN: 0955-7997
DOI: 10.1016/0955-7997(94)90003-5
Source: Engineering Analysis with Boundary Elements[ISSN 0955-7997],v. 13, p. 11-19
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