Controlled Propagation and Jamming of a Delamination Front

2020/06/07 by Mrityunjay Kothari, Kothari, Mrityunjay, Zoë S. Lemon +5
Physics and Astronomy · #FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft) #cond-mat.soft

paper · pdf · doi:10.48550/arxiv.2006.04007

4 pages, 4 figures

arxiv created 2020/06/07 · arxiv updated 2020/06/09

Abstract

We study the birth and propagation of a delamination front in the peeling of a soft, weakly adhesive layer. In a controlled-displacement setting, the layer partially detaches via a subcritical instability and the motion continues until arrested, by jamming of the two lobes. Using numerical solutions and scaling analysis, we quantitatively describe the equilibrium shapes and obtain constitutive sensitivities of jamming process to material and interface properties. We conclude with a way to delay or avoid jamming altogether by tunable interface properties.

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