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Prévision de la rupture des composites polyester/tissus de verre

Other titre : Prediction of failure in polyester reinforced by woven glass fabrics

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MQ67701.pdf (2.623Mb)
Publication date
1999
Author(s)
Nguyen-Hoa, Hoi
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Abstract
Polyester/glass fiber is probably by far the most commonly used composite. This work presents the results of an investigation on the failure of plain weave and 8-harness satin glass/polyester composites. To predict the failure strengths of any deformed fabric composites, the sub-plies model was used. In this model, woven fabric composites are divided into four fictional unidirectional sub-plies with orthotropic properties that are laid up in an unsymmetrical configuration. Consequently, the strength of woven fabric laminate is predicted as a function of the failure parameters of the constituent sub-plies and the in-plane shearing deformation angle between these plies. Another major advantage of the model is that it allows the direct use of laminated shell element in finite element codes for structural analysis. In order to take account of fiber undulation effect on mechanical properties, a procedure for the determination of the equivalent on-axis tensile and compressive strength coefficients of the constituent plies is also proposed."--Résumé abrégé par UMI
URI
http://savoirs.usherbrooke.ca/handle/11143/1139
Collection
  • Génie – Mémoires [1940]

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