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Computational Mechanics
Erschienen in: Computational Mechanics 4/2013

01.10.2013 | Original Paper

Fatigue crack growth simulations of interfacial cracks in bi-layered FGMs using XFEM

verfasst von: S. Bhattacharya, I. V. Singh, B. K. Mishra, T. Q. Bui

Erschienen in: Computational Mechanics | Ausgabe 4/2013

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Abstract

An investigation of fatigue crack growth of interfacial cracks in bi-layered materials using the extended finite element method is presented. The bi-material consists of two layers of dissimilar materials. The bottom layer is made of aluminium alloy while the upper one is made of functionally graded material (FGM). The FGM layer consists of 100 % aluminium alloy on the left side and 100 % ceramic (alumina) on the right side. The gradation in material property of the FGM layer is assumed to be exponential from the alloy side to the ceramic side. The domain based interaction integral approach is extended to obtain the stress intensity factors for an interfacial crack under thermo-mechanical load. The edge and centre cracks are taken at the interface of bi-layered material. The fatigue life of the interface crack plate is obtained using the Paris law of fatigue crack growth under cyclic mode-I, mixed-mode and thermal loads. This study reveals that the crack propagates into the FGM layer under all types of loads.
Vorheriger Artikel Towards the stabilization of the low density elements in topology optimization with large deformation
Nächster Artikel A new boundary element formulation for wave load analysis

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Metadaten
Titel
Fatigue crack growth simulations of interfacial cracks in bi-layered FGMs using XFEM
verfasst von
S. Bhattacharya
I. V. Singh
B. K. Mishra
T. Q. Bui
Publikationsdatum
01.10.2013
Verlag
Springer Berlin Heidelberg
Erschienen in
Computational Mechanics / Ausgabe 4/2013
Print ISSN: 0178-7675
Elektronische ISSN: 1432-0924
DOI
https://doi.org/10.1007/s00466-013-0845-8

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