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Modeling of coupled dual-scale flow-deformation processes in composites manufacturing
RISE, Swerea, Swerea SICOMP.
RISE, Swerea, Swerea SICOMP.
Chalmers University of Technology.
2013 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 46, no 1, 108-116 p.Article in journal (Refereed)
Abstract [en]

The present contribution is a part of the work towards a framework for holistic modeling of composites manufacturing. Here we focus our attention onto the particular problem of coupled dual-scale deformation-flow process such as the one arising in RTM, Vacuum Assisted Resin Infusion (VARI) and Vacuum Bag Only (VBO) prepregs. The formulation considers coupling effects between macro-scale preform processes and meso-scale ply processes as well as coupling effects between the solid and fluid phases. The framework comprises a nonlinear compressible fiber network saturated with incompressible fluid phase. Internal variables are introduced in terms of solid compressibility to describe the irreversible mesoscopic infiltration and reversible preform compaction processes. As a main result a coupled displacement-pressure, geometrically nonlinear, finite element simulation tool is developed. The paper is concluded with a numerical example, where a relaxation-compression test of a planar fluid filled VBO preform at globally un-drained and partly drained conditions is considered. © 2012 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2013. Vol. 46, no 1, 108-116 p.
Keyword [en]
C. Finite Element Analysis (FEA), E. Consolidation, E. Forming, Poromechanics
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-13161DOI: 10.1016/j.compositesa.2012.11.002OAI: oai:DiVA.org:ri-13161DiVA: diva2:973357
Available from: 2016-09-22 Created: 2016-09-22Bibliographically approved

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Composites. Part A, Applied science and manufacturing
Materials Engineering

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