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Peeling a rigid sphere from a stretched rubber substrate
Journal article   Open access

Peeling a rigid sphere from a stretched rubber substrate

Christopher W. Barney and Yue (Luna) Zheng
Extreme Mechanics Letters, v 79, 102381
Sep 2025
url
https://doi.org/10.1016/j.eml.2025.102381View
Published, Version of Record (VoR) Open

Abstract

Indentation Polymer Pre-stress
Polymer coatings are an important technology where pre-stresses can develop during draping, drying, and cooling. This paper aims to quantify the impact that these stresses have on the indentation response. Spherical probe indentation is performed on a stretched and unstretched substrate where the evolution of the contact area is monitored. Consistent with previous works, it is found that the contact area becomes elliptical on stretched substrates. Further, it is observed that this ellipse dynamically evolves during the indentation and peel process. This change in contact area upon stretching is found to increase the apparent stiffness and decrease the adhesive response.

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Mechanical
Materials Science, Multidisciplinary
Mechanics
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