| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Fivel, Marc C.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Influence of microstructure on mass loss caused by acoustic and hydrodynamic cavitation ; Effet de la microstructure sur la perte de masse engendrée par la cavitation acoustique et hydrodynamique
- 2023Comparison of acoustic and hydrodynamic cavitation: material point of view ; Comparaison entre cavitation ultrasonore et hydrodynamique : point de vue du matériaucitations
- 2022Comparison of acoustic and hydrodynamic cavitation: material point of viewcitations
- 2022Ti3SiC2-SiC multilayer thin films deposited by high temperature reactive chemical vapor depositioncitations
- 2020Estimation of Cavitation Pit Distributions by Acoustic Emissioncitations
- 2019SPH modelling of a cavitation bubble collapse near an elasto-visco-plastic materialcitations
- 2018Cavitation erosion resistance assessment and comparison of three francis turbine runner materialscitations
- 2018Cavitation Bubble Collapse Monitoring by Acoustic Emission in Laboratory Testingcitations
- 2017Cavitation bubble collapse detection by acoustic emissioncitations
- 2016Dislocation/hydrogen interaction mechanisms in hydrided nanocrystalline palladium filmscitations
- 2016First steps of crack initiation and propagation in fatigue of FCC crystals studied by dislocation dynamics
- 2016First steps of crack initiation and propagation in fatigue of FCC crystals studied by dislocation dynamics
- 2016Effect of Grain Disorientation on Early Fatigue Crack Propagation in FCC Polycrystals: Dislocation Dynamics Simulations and Corresponding Experimental Validationcitations
- 2015Primary combination of phase-field and discrete dislocation dynamics methods for investigating athermal plastic deformation in various realistic Ni-base single crystal superalloy microstructurescitations
- 2015Cavitation erosion in UHMWPE: a three-dimensional FEM study
- 2015Numerical estimation of impact load and prediction of material loss in cavitation erosioncitations
- 2015Cavitation erosion: Using the target material as a pressure sensorcitations
- 2015Post-irradiation plastic deformation in bcc Fe grains investigated by means of 3D dislocation dynamics simulationscitations
- 2015Outstanding cavitation erosion resistance of Ultra High Molecular Weight Polyethylene (UHMWPE) coatingscitations
- 2015Towards numerical prediction of cavitation erosioncitations
- 2015Towards numerical prediction of cavitation erosioncitations
- 2013Effect of grain disorientation on early fatigue crack propagation in face-centred-cubic polycristals: A three-dimensional dislocation dynamics investigation.citations
- 2012Analysis of particle induced dislocation structures using three-dimensional dislocation dynamics and strain gradient plasticitycitations
- 2010Internal stress evolution in Fe laths deformed at low temperature analysed by dislocation dynamics simulationscitations
- 2008Amorphous and partially crystallized metallic glasses: An indentation studycitations
- 2008Introducing Dislocation Climb by Bulk Diffusion in Discrete Dislocation Dynamicscitations
- 2007Chapitre 8: Mechanical and Nanomechanical Propertiescitations
- 2005Degallaix a three dimensional discrete dislocation dynamics analysis of cyclic straining in 316L stainless steel.
- 2004Low-strain fatigue in AISI 316L steel surface grains: a three-dimensional discrete dislocation dynamics modelling of the early cycles. I: Dislocation microstructures and mechanical behaviour
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document
First steps of crack initiation and propagation in fatigue of FCC crystals studied by dislocation dynamics
Abstract
3D discrete dislocation dynamic (DDD) simulations are performed to simulate stage-I fatigue crack initiation and propagation along the surface, in the primary grain in 316L stainless steel. It emphasizes the effect of the cyclic plasticity on the specificity of the dislocations microstructure and its direct consequence on the surface relief. It shows how this relief favors crack initiation, and how the dislocations microstructure favors its propagation in the primary grain. The evolution of the dislocation structure ahead of crack tip is discussed, and in addition crack tip sliding displacement is estimated for different position of the tip in the grain. A propagation law is given and compared with the initiation law, to highlight the effect of the grain size and the plastic strain on both regimes. It is clearly shown than small grains disfavors crack initiation, but favors crack propagation. An energetical approach is performed to estimate the most probable propagation speed, via the estimation of the maximum decohesion length allowed by the principle of thermodynamics.