Singularity-free theory and adaptive finite element computations of arbitrarily-shaped dislocation loop dynamics in 3D heterogeneous material structures

Vattré, A.; Chiaruttini, Vincent

doi:10.1016/j.jmps.2022.104954

Cited by 7 publications

(3 citation statements)

References 130 publications

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“…Mostly described for linear elastic cases in (Vattré and Chiaruttini 2022), the proposed method is an extension to non-linear explicit fatigue crack growth of the algorithms developed in the Z-set code, based successively for each crack increment on: (i) fatigue fea: fatigue loading cycling that takes into account crack closure effect and contact; (ii) post-processing: applying some post-processing computation on the FEA solution of the Vincent Maurel et al…”

Section: Crack Growth Remeshing and Internal Variablesmentioning

confidence: 99%

“…The question of a criterion able to describe fatigue crack growth rate associated to these mechanisms is still open. Furthermore, new tools are now available to describe in a robust manner fatigue crack growth based on either X-FEM technique (Ribeaucourt et al 2007) or conform remeshing technique (Chiaruttini et al 2012;Vattré and Chiaruttini 2022) to describe explicit 3D crack shape and its evolution with fatigue crack growth. For elastic-plastic material, the preservation of the internal variables being essential, both the sub-cutting technique of the X-FEM methods and conformal remeshing are requiring sounded field transfer operations.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue crack growth under large scale yielding condition: a tool based on explicit crack growth

Maurel

Chiaruttini

Köster

et al. 2023

Journal of Theoretical, Computational and Applied Mechanics

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Fatigue crack growth under large-scale yielding condition is studied for high-temperature loading. The applied strains are so important that diffuse damage phenomena are visible as a network of micro-cracks in front of the major crack. The survey of a macroscopic cracked surface is nevertheless possible, and numerical simulations with explicit representation of this crack are carried out to evaluate crack driving forces. The proposed numerical scheme takes into account plastic wake in the course of crack growth in a 3D model. A non-local model of fatigue crack growth rate, based on partition of strain energy density into elastic and plastic terms, yields improved results as compared to classical assessment of ∆J by numerical methods.

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Section: Crack Growth Remeshing and Internal Variablesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatigue crack growth under large scale yielding condition: a tool based on explicit crack growth

Maurel

Chiaruttini

Köster

et al. 2023

Journal of Theoretical, Computational and Applied Mechanics

View full text Add to dashboard Cite

show abstract

“…First, it is based on the assumption of an existing crack and enables studying its propagation but fails to predict its nucleation. Second, its implementation in a finite element (FE) code to study crack propagation either requires a priori the knowledge of the crack path or robust remeshing methods to update the crack configuration at each propagation step (Chiaruttini et al 2013;Vattré et al 2022). The first limitation was overcome by Leguillon (2002) who developed the coupled criterion in the finite fracture mechanics (FFM) framework (Nairn et al 1993;Hashin 1996), dedicated to study the nucleation of a crack.…”

Section: Introductionmentioning

confidence: 99%