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Modeling of coupled dual-scale flow–deformation processes in composites manufacturing

Mohammad Rouhi (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Maciej Wysocki (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Ragnar Larsson (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
Composites. Part A, Applied science and manufacturing (1359-835X). Vol. 46 (2013), p. 108-116.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: C. Finite Element Analysis (FEA); E. Consolidation; E. Forming; Poromechanics



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Denna post skapades 2012-12-19. Senast ändrad 2016-02-01.
CPL Pubid: 168323

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Material- och beräkningsmekanik (2005-2017)

Ämnesområden

Materialvetenskap
Teknisk mekanik
Fastkroppsmekanik
Kompositmaterial och -teknik

Chalmers infrastruktur

C3SE/SNIC (Chalmers Centre for Computational Science and Engineering)

Relaterade publikationer

Denna publikation ingår i:


Poromechanical Modeling of Composites Manufacturing


Process Modeling of Composite Manufacturing