Mode-I interfacial fracture toughness of adhesives Mode-I traction-separation constitutive relation of adhesives Test limited to double cantilever beam specimens with identical symmetric tape or fabric laminate adherends secondarily bonded or co-cured using a paste or film adhesive material.
KeywordsJ-integral; interfacial fracture test method
Existing interlaminar fracture toughness test methods rely on linear elastic fracture mechanics principles which may not apply to fracture of high-fracture toughness structural adhesive materials used in bonded composite structure. A new test method to characterize interfacial fracture of these adhesives would provide helpful engineering information, including design allowables and input data for progressive damage analysis tools. Potential users include manufacturers of bonded composite structure, academic institutions, government agencies, and other researchers in the field of composite materials.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development