Modeling and simulation of compressible multi-material interface instabilities
Communication sans acte
Auteur
DE BRAUER, AlexiaGORSSE, YannickIOLLO, Angelo 
MILCENT, ThomasRésumé
We aim to simulate the interactions at the material interface of two compressible media. These interactions are modeled by a single fully Eulerian system of conservation laws. The materials differ by their constitutive laws, that can reproduce the mechanical characteristics of fluids or elastic solid. We illustrate the model with simulations of shock waves impinging on undulated interfaces, generating instabilities such as Richtmyer-Meshkov instabilities.
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Communication avec acte; ;MILCENT, Thomas (Istituto Nazionale di Alta Matematica, 2015)
We propose a simple Cartesian method to simulate the interaction of compressible materials separated by a sharp interface. The model describes fluids, hyper-elastic and perfectly plastic solids in a fully Eulerian frame ...
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Article dans une revue avec comité de lecture; ;MILCENT, Thomas (Global Science Press, 2017)
We describe a numerical model to simulate the non-linear elasto-plastic dy- namics of compressible materials. The model is fully Eulerian and it is discretized on a fixed Cartesian mesh. The hyperelastic constitutive law ...
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Brevet; ;MILCENT, Thomas (ELSEVIER, 2016)
We model the three-dimensional interaction of compressible materials separated by sharp interfaces. We simulate fluid and hyperelastic solid flows in a fully Eulerian framework. The scheme is the same for all materials and ...
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Communication avec acte; ;MILCENT, Thomas (2014)
This paper is devoted to the 3D extension of a sharp interface multimaterial method. We present preliminary results for 3D stiff cases of shock air/helium/water interaction and impacts of projectiles on elastic bodies ...
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Article dans une revue avec comité de lecture; ; ;MILCENT, Thomas (Elsevier, 2014)
We present a simple numerical method to simulate the interaction of two non-miscible compressible materials separated by an interface. The media considered may have significantly different physical properties and constitutive ...