Static strength prediction of curved composite joints under internal pressure

Nowadays, adhesive joints are largely applied in the automotive, aircraft and aerospace, civil, naval industries. Although several applications involve flat (plane) adherends, curved play an important role many engineering like civil construction. This work aims to investigate three structural adhesives, ranging from brittle ductile, joggle-lap between carbon fibre reinforced polymer adherends subjected internal pressure, validate a robust design procedure provide project guidelines for this complex structural, geometrical, loading system, which constitute main novelty of proposed work. A numerical cohesive zone model parametric analysis was undertaken by varying overlap length, thickness adherends’ curvature, including evaluation peel shear stresses adhesive, failure mode comparison, maximum load, energy dissipated after failure. Validation technique initially performed using single-lap joint under tensile loads. significant effect length on load found, while curvature negligible. Ductile although less strong, generally better terms energy.