150 research outputs found
Effect of length variation of flax/polypropylene pellets produced by multi-die pultrusion on the quality of injection molded product
No full textDesign, manufacturing and applications of composites : proceedings of the 12th Canada-Japan Workshop on Composites, July 4-7, 2018, Takayama, Gifu, Japan
No full textManufacturing of braided thermoplastic composites with commingled fibers
No full textThrough this work, an investigation on thermoplastic composites manufactured with braided commingled fibers is performed. Thermoplastic composites have the potential for complex shape part manufacturing with a cost-effective perspective. However they present a manufacturing challenge because of the high melt viscosity of their matrices. Among the many solutions to this problem commingled yarns present a promising avenue. The commingled yarn studied here is a carbon/nylon yarn from Schappes Techniques France. Braiding is used to manufacture preforms from this yarn. Bi-axial braiding is described with the mathematical relations regulating the process. The machine available in the lab has been calibrated and seven fabrics have been produced with seven different braiding conditions to explore the preforming method. The fabrics have been consolidated using compression molding. A model to predict the final thickness of the consolidated braid is proposed. The evaluation of the quality of the consolidation was performed using a constituent content method and a qualitative observation by microscopy. Both methods were developed in the scope of this work. Flexural and tensile mechanical properties of the consolidated laminates are tested. The tensile modulus data are compared to a mathematical model using the classical lamination theory
Effect of Flax/PP pellets’ morphology on the mechanical properties of injection-molded parts
No full textEffect of high pulling speeds on the morphologies of pultrudates in a thermoplastic pultrusion process
No full textFiber damage and impregnation during multi‐die vacuum assisted pultrusion of carbon/PEEK hybrid yarns
No full textFabrication de structures tridimensionnelles de nanocomposites polymères chargés de nanotubes de carbone à simple paroi
No full textNanotubes de carbone -- Nanocomposites pour les applications mécaniques -- Nanocomposites pour les applications électriques -- Intégration -- Techniques de fabrication -- Démarche, organisation et cohérence des articles -- Préparation and mechanical characterization of laser ablated single-walled carbon-nanotubes/polyurethane nanocomposite microbeams -- Three-dimensional micro structured nanocomposite beams by microfluidic infiltration -- Ultravaiolet-assisted direct-write fabrication of carbon nanotube/polymer nacocomposite micro-coils
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