In this paper, we present a combined analytical experimental program to evaluate the durability of and obtain fracture toughness data for wood-FRP bonded interfaces. The potential in-service delamination of bonded interfaces is evaluated interfaces. The potential in-service delamination of bonded interfaces is evaluated by a 3-cycle test of repeated wetting and drying, and the wet and dry interface strengths can be evaluated through block-shear tests. The fracture toughness of the interface is measured by an innovative fracture mechanics test. Several key parameters are investigated, such as coupling agent (primer) to promote bonding, open/closed assembly time, and clamping pressure. The present bond-interface characterization study can be used to quality adhesives, establish service performance, and obtain fracture toughness for conventional-FRP bonds.
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