Numerical and analytical study of fatigue and degradation in multilayer composite plates / Amin Moslemi Petrudi in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 2 (04/2020)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 30, N° 2 (04/2020) Titre : Numerical and analytical study of fatigue and degradation in multilayer composite plates Type de document : texte imprimé Auteurs : Amin Moslemi Petrudi, Auteur Année de publication : 2020 Note générale : Bibliogr. Langues : Français (fre) Catégories : Composites -- Détérioration Composites -- Rupture Composites à fibres de carbone -- Propriétés mécaniques Epoxydes Logiciels Matériaux -- Fatigue Rupture (mécanique) Structures multicouches Index. décimale : 668.4 Plastiques, vinyles Résumé : Composite laminates are widely used in civil engineering, aerospace, shipbuilding and the military industry because of their high strength and rigidity to their high weight ratio, good fatigue resistance and high energy absorption fineness. The mechanism of degradation in composites is very complex and one or more degradation modes may occur in the composites at the same time. In this paper, multi-layer composite degradation with stress concentration due to internal hole is investigated numerically and analytically. The miso-scale model is used to investigate the problem. Fortran and Ansys software have been used to analyze the problem. The usermat code is embedded in Fortran software and linked to Ansys software. The present paper solves the stress induced multilayers in the present study, and compares the results of this method with those of other researchers. Stress and damage contours have been reported. it is shown Change of the diameter of the central open-hole not only the effect on possible damage, damaging rate, progressive damage but also effect on the strength of the composite laminates is also indicated. Note de contenu : - MODEL OF THE FAILURE MECHANICS OF CONTINUOUS : Effective tension - Effective response - Thermodynamic forces - Evolution of destruction - Criterion of destruction - USERMAT CODE - MESH EVALUATION - VALIDATION USING EXPERIMENTAL RESULTS - RESULTS AND DISCUSSIONS - Table 1 : Literature review in composite materials research - Table 2 : IM6/914 composite the properties - Table 3 : Constant material parameters - Table 4 : Investigating the independence of mesh - Table 5 : The Dimensions Model DOI : https://doi.org/10.18280/rcma.300202 En ligne : https://www.iieta.org/download/file/fid/33118 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37588 [article]

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