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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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Fressengeas, Claude
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Complex patterning in jerky flow from time series analysis and numerical simulationcitations
- 2020Revisiting the Application of Field Dislocation and Disclination Mechanics to Grain Boundariescitations
- 2020Revisiting the Application of Field Dislocation and Disclination Mechanics to Grain Boundariescitations
- 2020A continuum model for slip transfer at grain boundaries ; Un modèle continue pour le transfert de glissement aux joints de grainscitations
- 2019Crystal plasticity modeling of the effects of crystal orientation and grain-to-grain interactions on DSA-induced strain localization in Al–Li alloyscitations
- 2019Crystal plasticity modeling of the effects of crystal orientation and grain-to-grain interactions on DSA-induced strain localization in Al–Li alloyscitations
- 2019Spatiotemporal correlations in the Portevin-Le Chatelier band dynamics during the type B - type C transitioncitations
- 2018Geometrically Nonlinear Field Fracture Mechanics and Crack Nucleation, Application to Strain Localization Fields in Al-Cu-Li Aerospace Alloyscitations
- 2018Geometrically Nonlinear Field Fracture Mechanics and Crack Nucleation, Application to Strain Localization Fields in Al-Cu-Li Aerospace Alloyscitations
- 2017On the strain rate dependence of the critical strain for plastic instabilities in Al-Mg alloyscitations
- 2017Interactions between cracks and dislocations in Al-Cu-Li alloys in presence of dynamic strain aging
- 2016Continuous Modeling of Dislocation Cores Using a Mechanical Theory of Dislocation Fields
- 2016Building compact dislocation cores in an elasto-plastic model of dislocation fieldscitations
- 2016Building compact dislocation cores in an elasto-plastic model of dislocation fieldscitations
- 2016A higher order elasto-viscoplastic model using fast Fourier transforms: Effects of lattice curvatures on mechanical response of nanocrystalline metalscitations
- 2016A higher order elasto-viscoplastic model using fast Fourier transforms: Effects of lattice curvatures on mechanical response of nanocrystalline metalscitations
- 2016A field theory of strain/curvature incompatibility for coupled fracture and plasticitycitations
- 2016A field theory of strain/curvature incompatibility for coupled fracture and plasticitycitations
- 2016Continuous description of a grain boundary in forsterite from atomic scale simulations: the role of disclinations Continuous description of a grain boundary in forsterite from atomic scale simulations: the role of disclinationscitations
- 2016Continuous description of a grain boundary in forsterite from atomic scale simulations: the role of disclinations Continuous description of a grain boundary in forsterite from atomic scale simulations: the role of disclinationscitations
- 2016Effects of grain-to-grain interactions on hear strain localization in Al-Cu-Li rolled sheetscitations
- 2016Effects of grain-to-grain interactions on hear strain localization in Al-Cu-Li rolled sheetscitations
- 2015A mesoscopic theory of dislocation and disclination fields for grain boundary-mediated crystal plasticitycitations
- 2015A mesoscopic theory of dislocation and disclination fields for grain boundary-mediated crystal plasticitycitations
- 2015On the effects of the Mg content on the critical strain for the jerky flow of Al–Mg alloyscitations
- 2014A field theory of distortion incompatibility for coupled fracture and plasticitycitations
- 2014A field theory of distortion incompatibility for coupled fracture and plasticitycitations
- 2013Elastic constitutive laws for incompatible crystalline media: the contributions of dislocations, disclinations and G-disclinationscitations
- 2013Elastic constitutive laws for incompatible crystalline media: the contributions of dislocations, disclinations and G-disclinationscitations
- 2011Grain boundary and triple junction energies in crystalline media: A disclination based approachcitations
- 2010Surface Damage and Treatment by Impact of a Low Temperature Nitrogen Jetcitations
- 2008Rearrangement of dislocation structures in the aging of ice single crystalscitations
- 2008Rearrangement of dislocation structures in the aging of ice single crystalscitations
- 2007Evidence for universal intermittent crystal plasticity from acoustic emission and high-resolution extensometry experimentscitations
Places of action
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article
Crystal plasticity modeling of the effects of crystal orientation and grain-to-grain interactions on DSA-induced strain localization in Al–Li alloys
Abstract
We develop a crystal plasticity model to investigate the coupled actions of crystal orientation, grain neighborhood and grain-to-grain elasto-plastic interactions on dynamic strain aging (DSA) and the onset and development of associated plastic strain localization in Al-Li alloys. Considering simple model multilayered microstructures with preferred orientations representative of rolled alloys, the aim is to identify grain orientation couples that can limit dynamic strain aging induced strain localization without compromising the flow stress and strain hardening properties. To this end, a slip system-based formulation of dynamic strain aging is implemented in a crystal plasticity finite element framework. The model validity is first checked with the simulation of a tensile specimen loaded at quasi-static applied strain rate. The introduction of dynamic strain aging allows predicting complex propagation of intense plastic localization bands. We further investigate the influence of crystal orientations on early strain localization in Al-Cu-Li-Mg alloys, by performing simulations representative of the early stage of a Kahn Tear test for single crystals and layered polycrystals. Using experimentally reported crystal orientations for rolled microstructures, the simulation results show that in both single and multilayered crystals, there is a strong influence of dynamic strain aging on localization patterns, as well as a significant orientation dependence. In multilayered crystals, the nature of strain localization can be remarkably modified when stand-alone crystals of a certain orientation are coupled with other orientations: strain localization may intensify or fade away depending on the coupling with neighboring orientations.