Rate constitutive equations for computational analyses of textile composite reinforcement mechanical behaviour during forming |
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| Authors: | P Badel S Gauthier E Vidal-Sallé P Boisse |
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| Affiliation: | 1. Department of Aerospace Engineering, University of Bristol, Oceans Building, University Walk, Bristol B58 1TR, UK;2. Laboratoire de Mécanique et d’Acoustique 31, ch. Joseph Aiguier, 13402, Marseille, France;1. Karlsruhe Institute of Technology, Institute for Vehicle System Technology, Chair of Light-Weight Technology, Rintheimer Querallee 2, 76131 Karlsruhe, Germany;2. Fraunhofer Institute for Chemical Technology, Polymer Engineering Department, Joseph-von-Fraunhofer-Str. 7, 76327 Pfinztal, Germany;1. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;2. Department of Engineering Mechanics, Chongqing University, Chongqing 400044, China;3. Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea;1. ThermoPlastic composites Research Center (TPRC), P.O. Box 770, 7500AT Enschede, The Netherlands;2. AniForm Virtual Forming, Deventer, The Netherlands;3. Faculty of Engineering Technology, Chair of Production Technology, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands;1. Engineering Development Center, Toray Industries, Inc., 3-1 Sonoyama 3-chome, Ostu, Shiga 520-0842, Japan;2. Université de Lyon, LaMCoS, INSA Lyon, Av. Jean Capelle, F69621 Villeurbanne, France;3. Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, BE-3001 Leuven, Belgium |
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| Abstract: | Textile composite reinforcements are made up of fibres. Consequently, their mechanical behaviour is a result of the possible sliding and the interactions between the fibres. When they are formed on double curved shapes, these fabrics are submitted to large strains, in particular large in-plane shear. Among the mechanical behaviour models for these textile reinforcements, continuous models are most commonly used for forming simulations because they can be used with standard finite elements. The objective of the present paper is to propose a continuous approach for textile reinforcement deformation analysis based on a rate constitutive equation specific to materials made of fibres. The objective derivative of this constitutive model is defined by the fibre rotation. This constitutive model is implemented in ABAQUS and can be used in most commercial F.E. software. The approach is extended to materials with two-fibre directions in order to perform simulations of woven fabric forming processes. A set of simulations of large deformations of textile composite reinforcements at the mesoscopic scale (deformation of a woven unit cell) and at the macroscopic scale (deep drawing) is presented to show the efficiency of the proposed approach. |
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