Halimi, RafikBezzazi, BoudjemaBadidi Bouda, AliDjelloul Abbou, M'hamedMimouni, Oussama2016-01-212016-01-2120151862-5282https://dspace.univ-boumerdes.dz/handle/123456789/2609In the present paper, seven laminated composites were the subject of an experimental study to determine their mechanical and viscoelastic properties by means of dynamic mechanical analysis in a bending configuration. The influence of the frequency, fiber type and fiber orientation on dynamic mechanical properties of different system composites were investigated. Carbon/epoxy laminates exhibit a great stiffness when fibers are oriented along the axis of the clamps, and the maximum modulus was reported for unidirectional carbon/epoxy laminate [08 plies] with 56.4 GPa. The glass transition temperature was found to decrease with the incorporation of fibers and increase with increased frequency. For the Kevlar/epoxy laminate, an increase of 12.5 8C in glass transition temperature was observed. This is related to a better interfacial adhesion between epoxy matrix and Kevlar fibersenComposite laminateDynamic mechanical analysiFiber/matrice interfaceGlass transition temperatureArticle