Determination of interfacial fracture energy for 'pop-in' delaminations in a glass-epoxy system using the indentation method
by Karen Hutchins; Thomas Buchheit; Rajan Tandon; Tariq Khraishi
International Journal of Theoretical and Applied Multiscale Mechanics (IJTAMM), Vol. 3, No. 2, 2018

Abstract: The adhesion of coatings often controls the performance of the substrate-coating system. Certain engineering applications require an epoxy coating on a brittle substrate to protect and improve the performance of the substrate. Interfacial adhesion measurements of such systems provide a quantitative metric of that performance. Indentation experiments were performed to induce interfacial delaminations in a glass substrate-epoxy coating system. Delamination loads and radii were measured and applied to an analytical solution originally developed by Rosenfeld et al. (1990) to estimate the interfacial fracture energy of the substrate-coating adhesive bond. Results suggest an interfacial bond strength far exceeding that of similar previously studied glass-epoxy systems.

Online publication date: Wed, 28-Nov-2018

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