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Publications associées (29)

Processing and Mechanical Properties of Novel Wood Fibre Composites Foams

Pierre-Etienne Bourban, Matthieu Cuénoud, Razvan Cristian Neagu

Wood fibre reinforced polylactic acid (PLA) composite foams have been successfully produced using supercritical carbon dioxide. A significant increase of specific properties, both stiffness and strength, was achieved by adding 5-10 wt% wood fibres. The exp ...

2009

In situ flow stress of pure aluminium constrained by tightly packed alumina fibres

Andreas Mortensen, Ludger Weber, Andreas Rossoll, Benedikt Moser

The in situ matrix flow stress of continuous fibre-reinforced aluminium is measured in tension along the fibre axis. We use a new, tighter, estimate for the effect differential Poisson contraction between fibres and matrix and take into consideration nonli ...

Elsevier2009

Hybrid glass fiber-reinforced thermoplastic nanocomposites

John Christopher Plummer, Chrystèle Houphouet-Boigny Favre, Martyn Douglas Wakeman

The feasibility of integrating thermoplastic isotactic polypropylene/ montmorillonite nanocomposite matrices into conventional fiber-reinforced composites has been investigated. Two basic processing routes were considered: long glass fiber (GF)-reinforced ...

2008

Deformation and fracture in isotactic polypropylene glass mat thermoplastic composites modified with montmorillonite clay

John Christopher Plummer, Sara Dalle Vacche, Chrystèle Houphouet-Boigny Favre

Satisfactory impregnation of glass fiber mats may be obtained with isotactic polypropylene/montmorillonite (MMT) nanocomposites under conditions comparable with industrial conditions. However, it is demonstrated here that the high melt viscosity of the nan ...

2008

Processing of fibre and porosity gradients in cellular thermoplastic composites

Manuel Bühler

The aim of this study has been to develop processing techniques for novel bioresorbable thermoplastic cellular composites, reinforced with continuous inorganic fibres, for use as biodegradable scaffolds for bone tissue engineering. As the implanted composi ...

EPFL2008

Modeling of post-fire stiffness of E-glass fiber- reinforced polyester composites

Thomas Keller, Yu Bai

A new model is proposed to estimate the post-fire stiffness of FRP composites after different fire-exposure times. The model considers the E-modulus recovery of the material if cooled down from temperatures between glass transition and decomposition during ...

2007

Cellular and fibre-reinforced composites for bone engineering

Pierre-Etienne Bourban, Manuel Bühler

glass fibre composites were successfully prepared. A specific processing method was developed for consolidated composites exhibiting different fibre concentration gradients. As the conditions to prepare PLA polymer foams with specific porosity morphology w ...

2007

Ductility of Saffil(TM) short fibre reinforced metals

Andreas Mortensen, Ludger Weber, Reza Tavangar Hamzehkolaei

It is proposed that a critical combination of matrix strain hardening exponent and fibre volume fraction must be exceeded to confer attractive tensile ductility to short-fibre reinforced metal. © 2005 Acta Materialia Inc. Published by Elsevier Ltd. Al ...

2005

Adhesively bonded lap joints from pultruded GFRP profiles. Part I: stress-strain analysis and failure modes

Thomas Keller, Till Vallée

Quasi-static axial tension experiments were performed in a laboratory environment on epoxy bonded, balanced double-lap and single-lap joints from pultruded GFRP flat sections. Full-scale specimens were used to avoid size effects. Parameters investigated we ...

2005

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