Fatigue Crack Growth Analysis of Functionally Graded Materials by EFGM and XFEM-Reference-Cited by-同舟云学术

Fatigue Crack Growth Analysis of Functionally Graded Materials by EFGM and XFEM

Published:2017-01-11 Issue:01 Volume:14 Page:1750004
ISSN:0219-8762
Container-title:International Journal of Computational Methods
language:en
Short-container-title:Int. J. Comput. Methods

Author:

Pant Mohit¹,Bhattacharya Somnath²

Affiliation:

1. Department of Mechanical Engineering, National Institute of Technology Hamirpur-177005, HP, India

2. Department of Mechanical Engineering, National Institute of Technology Raipur-492010, Chhattisgarh, India

Abstract

The present work investigates the fatigue life of a functionally graded material (FGM) made of aluminum alloy and alumina (ceramic) under cyclic mixed mode loading. Both element free Galerkin method (EFGM) and extended finite element method (XFEM) are employed to simulate and compare the fatigue crack growth. Partition of unity is used to track the crack path in XFEM while a new enrichment criterion is proposed to track the crack path in EFGM. The fatigue lives of aluminum alloy, FGM and an equivalent composite (having the same composition as of FGM) are compared for a major edge crack and center crack in a rectangular domain. The proposed enrichment criterion not only simulates the crack propagation but it also extends the applicability and robustness of EFGM for accurate estimation of fatigue life of component.

Publisher

World Scientific Pub Co Pte Lt

Subject

Computational Mathematics,Computer Science (miscellaneous)

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219876217500049

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