Damage Analysis of Poly-arylate Fibre/Epoxy Quasi-Isotropic Plate Using a Quasi-Three-Dimensional Model

摘要

The damage propagation of quasi-isotropic poly-arylate fibre reinforced epoxy laminated composites (ArFRP) subjected to a tensile load were investigated. We attempted to apply numerical simulation using a quasi-3-dimensional model and performed tensile tests of ArFRP and CFRP laminates as a reference. The quasi-3-dimensional model is constructed of shell elements and beam elements which represent the fibre and matrix, respectively. The damage propagation analyses of four-type ArFRP laminates (0/45/-45/90)_sym, (0/90/45/-45)_sym and (-45/45/0/90)_sym were performed and tested. Then, the same analyses of CFRP laminates were performed. Therefore it was found the quasi-3-dimensional model was effective for the estimation of stress-strain relationships of both the laminates. Some differences of damage propagation between ArFRP and CFRP were also clarified.