An analytical model is derived for the delamination of a thin film from a rigid substrate by a cylindrical shaft with a flat end and finite radius. We show that, within certain limitations, a point-load model can be applied to the system, to give simple relations between the film-substrate energy of adhesion and the measured variables of applied shaft force, blister height, and blister radius. The results are applicable to systems where a finite size cylindrical shaft or disk generates delamination of the film from the substrate.
Delamination of a Thin Film Driven by a Flat Cylindrical Shaft
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Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received May 3, 2018; final manuscript received June 22, 2018; published online July 17, 2018. Assoc. Editor: Yong Zhu.
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Julien, S. E., and Wan, K. (July 17, 2018). "Delamination of a Thin Film Driven by a Flat Cylindrical Shaft." ASME. J. Appl. Mech. November 2018; 85(11): 114501. https://doi.org/10.1115/1.4040695
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