A combined experimental and analytical investigation of an adhesively bonded composite joint was conducted to characterize the fracture mode dependence of cyclic debonding. The system studied consisted of graphite/epoxy adherends bonded with EC 3445 adhesive. Several types of specimens were tested which provided the cyclic debond growth rate measurements under various load conditions: mode I, mixed mode I and II, and almost mode II. This study showed that the total strain-energy-release rate was the governing factor for cyclic debonding.
Interaction of Mixed Mode Loading on Cyclic Debonding in Adhesively Bonded Composite Joints
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Mall, S., Rezaizadeh, M. A., and Gurumurthy, R. (January 1, 1987). "Interaction of Mixed Mode Loading on Cyclic Debonding in Adhesively Bonded Composite Joints." ASME. J. Eng. Mater. Technol. January 1987; 109(1): 17–21. https://doi.org/10.1115/1.3225925
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