Peeling from a biomimetically patterned thin elastic film
By A. Ghatak, L. Mahadevan, J. Chung, M. Chaudhury, V. Shenoy. Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2004
180 citations recorded by the source corpus.
Inspired by the observation that many naturally occurring adhesives arise as textured thin films, we consider the displacement–controlled peeling of a flexible plate from an incision–patterned thin adhesive elastic layer. We find that crack initiation from an incision on the film occurs at a load much higher than that required to propagate it on a smooth adhesive surface; multiple incisions thus cause the crack to propagate intermittently. Microscopically, this mode of crack initiation and propagation in geometrically confined thin adhesive films is related to the nucleation of cavitation bubbles behind the incision which must grow and coalesce before a viable crack propagates. Our theoretical analysis allows us to rationalize these experimental observations qualitatively and quantitatively and suggests a simple design criterion for increasing the interfacial fracture toughness of adhesive films.
Subfields: Cell Biology, Mechanics of Materials, Surfaces, Coatings and Films
View Paper: https://www.semanticscholar.org/paper/4ce9d63c073516f0c2e069abf04f2d08f685c8d7
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In Mechanics of Materials
In Surfaces, Coatings and Films
Citations in the corpus
- Statics and Dynamics of Soft Wetting (2020, background): “Conversely, reversible adhesives can be peeled without bulk cavitation or plastic deformations and have been the subject of recent interest in biomimetics (Autumn et al. 2000, Ghatak et al. 2004, Boesel et al. 2010, Jagota & Hui 2011).”