Dr. Mark Oliver and Dr. Scott Grindy each made presentations at the 45th Annual Meeting of The Adhesion Society, which took place February 20-23, 2022 in San Diego, CA.
Dr. Oliver spoke about "Designing Additively Manufactured Parts for Adhesive Assembly." Additive manufacturing (AM) is quickly gaining adoption as a method for production of end-use parts as it enables greater geometric complexity, on-demand manufacturing, mass customization, and part reduction.
Dr. Oliver discussed how adhesive joining combined with additive manufacturing can enable high-performance bonded structures. He shared examples of using topology optimization to generate lightweight bonded assemblies, and also shared concepts for using additive manufacturing to create hybrid joints that rely on a combination of part mechanical interlocking and adhesive bonding to achieve unique combinations of stiffness, strength, and damage tolerance.
This presentation was on Monday afternoon, February 21, 2022.
Dr. Grindy spoke about "Accounting for Tg in Mechanical Design of Adhesive Joints: Pitfalls and Recommendations." The glass transition temperature, Tg, represents the temperature above which hard and glassy polymers soften. It’s a particularly important property of thermoset adhesives.
Dr. Grindy discussed the potential pitfalls of using adhesives near Tg and how to avoid them. He shared approaches for designing mechanical test and material characterization programs to provide the data needed to understand properly how an adhesive will behave in service, and also discussed approaches for accounting for Tg when modeling joint behavior with FEA.
This presentation was on Tuesday afternoon, February 22, 2022.