Composite Materials and Engineering
Volume 2, Number 1, 2020, pages 53-64
DOI: 10.12989/cme.2020.2.1.053
Effects of adding graphene nanoparticles in decreasing of residual stresses of carbon/epoxy laminated composites
M.M. Shokrieh and M. Shams Kondori
Abstract
In the present paper, changes in the residual stress of carbon/epoxy laminated composites as a result of
adding graphene nanoparticles (GNPs) content were studied theoretically and experimentally. Three dissimilar weight
fractions of GNPs, i.e., 0.1%, 0.25% and 0.5%, were added into an epoxy matrix. Unidirectional carbon fibers (CFs)
were used as reinforcement to fabricate cross-ply laminated composites. Mechanical and thermal properties of the
GNP/epoxy nanocomposites were then characterized via tensile tests as well as thermomechanical analysis (TMA).
Based on experimental observations, adding even small fractions of GNP to epoxy matrix caused to decrease in the
coefficient of thermal expansion (CTE) significantly while the epoxy resin Young
Key Words
laminated composites; residual stresses; polymer; graphene nanoparticles; Coefficient of thermal expansion; Young
Address
M.M. Shokrieh and M. Shams Kondori: Composites Research Laboratory, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846-13114, Tehran, Iran