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Temperature Effects on the Fatigue & Impact Behaviors of Adhesively-Bonded Dissimilar Materials


The demand for design efficiency and confidence in load bearing structures are increased when predictions of the behavior of such structures under various loading and environmental conditions are to be accurately made. The methods used for such predictions are ever changing as new techniques, designs, and models are developed and require extensive experimental validation. This is especially pertinent in the realm of joints which are complex systems and can include multiple materials, a varying number of interfaces, and complex shapes. Adhesively-bonded joints offer many advantages in comparison to traditionally used joining methods, such as welding, brazing, and mechanical fastening, which include improved corrosion resistance, lower stress concentration, better fatigue properties, capability of bonding dissimilar materials, and expanded flexibility for designers.

Current Progress

The fatigue and impact behaviors of single-lap joints consisting of a pultruded E-glass/polyurethane composite bonded to steel and aluminum with a two part polyurethane adhesive at varying temperatures and load levels, specifically fatigue life and stiffness degradation for fatigue and impact response to varying velocities for impact, is currently being studied.

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Last Updated: Tuesday, October 18, 2016 11:42:22 PM
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