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- Title
Stress intensity factor analyses of three-dimensional interface cracks using tetrahedral finite elements.
- Authors
Nagai, Masaki; Ikeda, Toru; Miyazaki, Noriyuki
- Abstract
A numerical method is proposed for evaluating the stress intensity factors of a three-dimensional bimaterial interfacial crack using tetrahedral finite elements. This technique is based on the M-integral method and employs the moving least-squares approximation. Stress or strain in the M-integral equation is automatically approximated from the nodal displacements obtained by the finite element analysis using the moving least-squares method. Therefore, the presented method needs no elemental information from the finite element analysis. In this study, stress intensity factor analyses of some typical three-dimensional interface crack problems using the tetrahedral finite elements are demonstrated.
- Subjects
STRESS intensity factors (Fracture mechanics); THREE-dimensional display systems; FRACTURE mechanics; FINITE element method; STRAINS &; stresses (Mechanics); NUMERICAL analysis
- Publication
Computational Mechanics, 2013, Vol 51, Issue 5, p603
- ISSN
0178-7675
- Publication type
Article
- DOI
10.1007/s00466-012-0740-8