Chemical ageing effects on the ply and laminate strength of a filament wound cross-ply GFRP

Abstract This work presents a numerical approach to multi-routines based on experiments, and, with target analyse strength of cross-ply glass fibre reinforced plastics (GFRP) composite after immersion in sulphuric acid solution under pressure (5% H 2 SO 4 solution, 95 °C, 15 bar). Two alternative vinyl ester resins (bisphenol A diglycidyl ether and epoxy phenol novolac) were investigated. After 0.5, 1, 1.5 2 years conditioning, the specimens mechanically tested. The multi-scale definition material system its virtual conditioning performed finite element (FE) model. Hashin 3D failure criterion was implemented by coding UMAT subroutine when using Abaqus software. experimental results demonstrated better performance bisphenol resin-based GFRP thin barrier layer is used. indicated that shear property most susceptible at weak zones present tendency for degradation one year conditioning.