This study analyses on comparing the static delamination behavior and mode I fracture toughness of two types of adhesives (one epoxy and one acrylic) used in a composite material with an epoxy matrix and unidirectional carbon fiber reinforcement. The material was subjected to two different degradation processes (hygrothermal and salt spray chamber), and then mode I fracture was evaluated for both materials.
The results suggest that hygrothermal exposure may have a moderate impact on the delamination behavior of the epoxy adhesive, while exposure to the salt spray environment may result in a significant loss of its delamination resistance. For the acrylic adhesive, hygrothermal exposure improved its delamination behavior, while exposure to the salt spray environment had a minor impact on its behavior. Overall, it is concluded that the type of aging has influence on the fracture behavior of both adhesives.
Abstract This study analyses on comparing the static delamination behavior and mode I fracture toughness of two types of adhesives (one epoxy and one acrylic) used in a composite material [...]
Influence of aging type on adhesive joints in carbon fiber-reinforced epoxy composites 
