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Simulation of Short Fatigue Crack Propagation in a 3D Experimental Microstructure
Author(s) -
Proudhon Henry,
Li Jia,
Ludwig Wolfgang,
Roos Arjen,
Forest Samuel
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600721
Subject(s) - materials science , microstructure , fracture mechanics , crack closure , plasticity , crystallite , finite element method , crystal plasticity , diffraction , structural engineering , paris' law , composite material , metallurgy , optics , engineering , physics
A three dimensional simulation of short fatigue crack propagation in a polycrystalline microstructure using a crystal plasticity finite element model is carried out. The experimental microstructure which contains several hundreds grains, was obtained via diffraction contrast tomography. A step‐by‐step short fatigue crack growth model based on capturing the plastic activity at the crack tip is used. Technical details are given and discussed in light of the compromise needed to perform such demanding calculations. The crack propagates through several grains and depicts some of the characteristic short crack features observed experimentally in the literature.