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 Prediction of the longitudinal tensile strength of polymer matrix composites
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5840

title: Prediction of the longitudinal tensile strength of polymer matrix composites
authors: Morais, A. B. de
keywords: Polymer-matrix composites
Longitudinal tensile strength
Ineffective length
Weibull distribution
issue date: 19-Jul-2006
publisher: Faculdade de Engenharia da Universidade do Porto
abstract: A micromechanical model was developed for the prediction of the longitudinal tensile strength of polymer matrix composites. The model considers successive fibre breaks within an infinitely wide Li-long representative volume element (RVE), Li being the so-called ineffective length. An elastic-plastic stress transfer model is used to define Li and fibre strength is described by a Weibull distribution. The composite strength is obtained by solving numerically an equation for the maximum RVE stress. A simplified closed-form solution derived proved to be in very good agreement with the base formulation. Although there is still significant uncertainty over model input data, predictions agreed well with experimental strengths of carbon fibre composites.
URI: http://hdl.handle.net/10773/5840
ISBN: 972-8953-07-0
publisher version/DOI: http://paginas.fe.up.pt/~meso2006/
source: Mesomechanics 2006: Multiscale behavior of materials and structures: analytical, numerical and experimental simulation
appears in collectionsMEC - Comunicações

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