Modeling of coupled dual-scale flow–deformation processes in composites manufacturing
Artikel i vetenskaplig tidskrift, 2013

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.

E. Consolidation

C. Finite Element Analysis (FEA)

E. Forming

Poromechanics

Författare

Mohammad Sadegh Rouhi

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Maciej Wysocki

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Ragnar Larsson

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

Composites Part A: Applied Science and Manufacturing

1359-835X (ISSN)

Vol. 46 1 108-116

Ämneskategorier

Maskinteknik

Teknisk mekanik

Kompositmaterial och -teknik

Fundament

Grundläggande vetenskaper

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Styrkeområden

Materialvetenskap

DOI

10.1016/j.compositesa.2012.11.002

Mer information

Skapat

2017-10-07