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Fatigue-life estimation of functionally graded materials using XFEM

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Abstract

The present work deals with the fatigue crack growth simulation of alloy/ceramic functionally graded materials (FGMs) using extended finite element method (XFEM). Various cases of FGM containing multiple inhomogeneities/discontinuities along with either a major edge or a center crack are taken for the purpose of simulation. The fatigue life of the FGM plate is calculated using Paris law of fatigue crack growth under cyclic loading. The effect of multiple inhomogeneities/discontinuities (minor cracks, holes/voids, and inclusions) on the fatigue life of cracked FGM plate is studied in detail. These simulations show that the presence of inhomogeneities/discontinuities in the domain significantly influences the fatigue life of the components.

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India

    S. Bhattacharya, I. V. Singh & B. K. Mishra

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  1. S. Bhattacharya
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  2. I. V. Singh
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  3. B. K. Mishra
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Correspondence to I. V. Singh.

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Bhattacharya, S., Singh, I.V. & Mishra, B.K. Fatigue-life estimation of functionally graded materials using XFEM. Engineering with Computers 29, 427–448 (2013). https://doi.org/10.1007/s00366-012-0261-2

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  • DOI: https://doi.org/10.1007/s00366-012-0261-2

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