Fatigue Crack Growth Simulations in Ductile Materials by Coupled FE-EFG Approach

Sachin Kumar; Indra Vir Singh; B.K. Mishra

doi:10.4028/www.scientific.net/AMM.829.73

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 829Fatigue Crack Growth Simulations in Ductile...

Fatigue Crack Growth Simulations in Ductile Materials by Coupled FE-EFG Approach

Abstract:

In this paper, a coupled finite element (FE) and element free Galerkin (EFG) approach is presented for the simulation of fatigue crack growth problems. The problem domain is subdivided into two regions i.e. EFG region and FE region. A ramp function is used in the transition region to obtain the resultant shape functions. This approach effectively handles the crack growth problems without remeshing, and is found computationally more efficient than other meshfree methods. The effectiveness of this approach is demonstrated by simulating material interface fatigue crack growth problems. These simulations show that the results obtained by coupled approach are in good agreement with the XFEM results.

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Applied Mechanics and Materials (Volume 829)

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73-77

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.829.73

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Online since:

March 2016

Authors:

Sachin Kumar, Indra Vir Singh*, B.K. Mishra

Keywords:

Coupled Approach, Fatigue Crack Growth, Ĵ-Integral, von-Mises Yield Criterion

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