Coupled Heating/Forming Optimization of Knitted Reinforced Composites
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- Bu səhifədəki naviqasiya:
- Pancrace Johann
- Prof. Fabrice Schmidt
- Prof. Phillipe Boisse
  
Vous êtes cordialement invités à la soutenance de la thèse de : Pancrace Johann 06 Aout 2013, 15h00 Ecole des Mines d’Albi, salle 1A22
The feasibility of knitted fabric reinforcement for highly flexible composites is investigated for the thermoforming process. The composite sheets are made through compression molding before being shaped. We use thermoplastic elastomers as matrices: Thermoplastic Elastomers and Thermoplastic Olefins. The knit reinforcement is provided by jersey knitted fabrics of polyester fibers. A special attention is drawn to the quality of processed products through the thickness repartition. The knit reinforcement is suitable to improve the latter. Several deformation modes are studied and different behaviors are observed: uniaxial traction, pure shear and biaxial inflation. The interface between the matrix and the reinforcement is a major driver of flexible composite deformations. The IR heating is used to soften the composite prior shaping. The IR heating may be improved in terms of efficiency and cost. The relations between the emitter localizations and temperatures are particularly studied. Simulations of both the IR heating and the deformation or shaping phases are proposed. Hyperelasticity is treated and used for simulation purposes. Mots-Clés: Thermoforming, Knitted Fabric, Infrared Heating, Thermoplastic Elastomers, Flexible Composites Etablissements d’inscription : Ecole des Mines d’Albi, ICA Albi / Lehigh University Composition du Jury: Prof. Fabrice Schmidt, Committee Chairman and Dissertation Advisor Ecole des Mines, ICA Albi Prof. Herman N. Nied, Dissertation Advisor Lehigh University, Department of Mechanical Engineering and Mechanics Prof. Yannick LeMaoult, Dissertation Advisor Ecole des Mines, ICA Albi Prof. Raymond A. Pearson Lehigh University, Department of Material Science and Engineering Prof. Phillipe Boisse INSA Lyon Prof. John P. Coulter Lehigh University, Department of Mechanical Engineering and Mechanics Prof. Philipe Olivier University of Toulouse Prof. Arkady Voloshin Lehigh University, Department of Mechanical Engineering and Mechanics Yüklə 7,43 Kb. Dostları ilə paylaş:
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