Volume 9, Issue 3, 2000

New Numerical Model of Composite Fabric Behaviour: Simulation of Manufacturing of Thin Composite Part

J.L. Billoet1 and A. Cherouat 1,2

1 LM2S secteur ENSAM of Paris 151 Boulevard de l’Hôpital 75013 Paris, France

e-mail: jean-louis.billoet@paris.ensam.fr, URL: http://www.paris.ensam.fr

2 LASMIS - GSM University of Technology of Troyes BP 2060 10010 Troyes, France

e-mail: abdelhakim.cherouat@univ-troyes.fr, URL: http://www.univ-troyes.fr

(Received 10/99; accepted 5/00)

ABSTRACT

The present study concerns the modelling of the behaviour of pre-impregnated woven fabric during the forming process. The mechanical approach is based on a mesostructural model. It allows us to take into account the mechanical properties of fibres and resin and the various dominating mode of deformation of woven fabrics during the forming process. Shear and tensile tests of composite fabric specimens are proposed and compared with the experimental results in order to demonstrate the efficiency of our approach. Different numerical simulations and experiments of shaping process have been carried out in order to validate the proposed computational formulation. The various forming parameters examined have included the initial shape of fabric, fibre orientations and viscosity of resin.

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