Investigation of debonding propagation in aluminum/composite joints under f...: EBSCOhost
In this paper, Fracture Mechanics is used to predict debonding propagation in adhesive joint between aluminum and composite plates. Three types of loadings (λ = 0,λ = 0.5, andλ = 1 whenλis the ratio of lateral to in-plane loading) and two types of glass–epoxy composite sequences: [0/90]2sand [0/45/−45/90]sare considered for the composite plate and their results are compared. It was seen that generally the cases with stacking sequence of [0/45/−45/90]shave much shorter lives than cases with [0/90]2s. It was also seen that in cases withλ = 0, the ends of the debonding front propagates forward more than its middle, while in cases withλ = 0.5 orλ = 1 it is vice versa. Moreover, regardless of value ofλ, the difference between the debonding propagations of the ends and the middle of the debonding front is very close in casesλ = 0.5 andλ = 1. Another main conclusion was that the non-dimensionalized debonding front profile is almost independent of sequence type or the applied load value. [ABSTRACT FROM PUBLISHER]
