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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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Leconte, Nicolas
Office National d'Études et de Recherches Aérospatiales
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024A FEM/DEM adaptive remeshing strategy for brittle elastic failure initiation and propagationcitations
- 2024A FEM/DEM adaptive remeshing strategy for brittle elastic failure initiation and propagation ; Une méthode de ramaillgage adaptif éléments finis / éléments discrets pour l'initiation et la propagation de la rupture élastique fragilecitations
- 2022Modeling complex mechanical computer codes with functional input via Gaussian processes
- 2020Strength and failure of an aluminum/PA66 self-piercing riveted assembly at low and moderate loading rates: Experiments and modelingcitations
- 2018Experimental study of the mechanical strength and the failure of multi-sheet, multi-material spot-welded assemblies under pure and combined loading conditionscitations
- 2017Thermal effect of the welding process on the dynamic behavior of the HSS constitutive materials of a fillet welded jointcitations
- 2017Influence of the heat affected zone on the dynamic behavior of a welded joint of armoured steelcitations
- 2017Experimental characterisation of multi-sheet, multi-material spot-welded assemblies under pure and combined loading conditions
- 2017Experimental characterisation of multi-sheet, multi-material spot-welded assemblies under pure and combined I/II loading conditions
- 2017Macro-modeling of spot weld strength and failure: Formulation and identification procedure based on pure and mixed modes of loading ; Modélisation à l'échelle macroscopique de la tenue et de la rupture des points soudés : formulation et procédure d'identification fondée sur des changements en mode purs et mixtescitations
- 2016A methodology for the viscoplastic behaviour characterisation of spot-weld heat affected materialscitations
- 2015Thermal effect of the welding process on the dynamic behavior of the HSS constitutive materials of a fillet welded joint
- 2015Numerical modeling of low velocity impact of thin metallic structures using shell finite element enriched by interpolation covers
- 2015Dynamic behavior and failure of the base and heat affected materials of a HSS fillet welded joint
Places of action
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article
A FEM/DEM adaptive remeshing strategy for brittle elastic failure initiation and propagation
Abstract
<jats:title>Abstract</jats:title><jats:p>This article presents an adaptive remeshing strategy between the finite element method (FEM) and the discrete element method (DEM). To achieve this strategy, an edge‐to‐edge coupling method based on Lagrange multipliers has been set‐up to ensure the continuity of velocities at the interface. To switch from a computation initially purely FEM to a FEM‐DEM one, a field transfer method was required. In particular, a displacement field transfer method has been set‐up. The switching from a FEM subdomain to a DEM one is activated by a transition criterion. Each time a FEM subdomain is substituted by a DEM one, the DEM subdomain microscopic properties are set‐up with respect to the subdomain geometry and desired particle refinement. This is performed thanks to the linking to the so‐called “Cooker,” a tool distributed along with the GranOO Workbench. Two subdomain remeshing cases were dealt with: that of an initially FEM subdomain that is converted to DEM, and that of DEM subdomains which coalesce. A numerical test case shows that the dynamic remeshing method behaves as expected: FEM subdomains are substituted by DEM ones when the transition criterion is met, and DEM subdomains coalesce when required. The final numerical test case shows a good agreement with a crack propagation experiment of the literature, while a speedup of about 20 was observed when compared to pure DEM computation.</jats:p>