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A robust monolithic approach for resin infusion based process modelling

Abstract : The aim of this work is to focus on the Stokes-Darcy coupled problem in order to propose a robust monolithic approach to simulate composite manufacturing process based on liquid resin infusion. The computational domain can be divided into two non-miscible sub-domains: a purely fluid domain and a porous medium. In the purely fluid domain, the fluid flows according to the Stokes' equations, while the fluid flows into the preforms according to the Darcy's equations. Specific conditions have to be considered on the fluid/porous medium interface. Under the effect of a mechanical pressure applied on the high deformable preform/resin stacking, the resin flows and infuses through the preform which permeability is very low, down to 10(-15)m(2). Flows are solved using finite element method stabilized with a sub-grid scale stabilization technique (ASGS). A special attention is paid to the interface conditions, namely normal stress and velocity continuity and tangential velocity constraint similar to a Beaver-Joseph-Saffman's condition. The originality of the model consists in using one single mesh to represents the Stokes and the Darcy sub-domains (monolithic approach). A level set context is used to represent Stokes-Darcy interface and to capture the moving flow front. This monolithic approach is now perfectly robust and leads to perform complex shapes for manufacturing process by resin infusion.
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Submitted on : Friday, September 10, 2021 - 3:34:22 PM
Last modification on : Monday, October 18, 2021 - 4:22:07 PM


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Lara Abouorm, Maxime Blais, Nicolas Moulin, Julien Bruchon, Sylvain Drapier. A robust monolithic approach for resin infusion based process modelling. Key Engineering Materials, Trans Tech Publications, 2014, 611-612, pp.306-315. ⟨10.4028/⟩. ⟨emse-01144951⟩



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