Pattern Formation During Deformation of a Confined Viscoelastic Layer: From a Viscous Liquid to a Soft Elastic Solid

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dc.creatorNase, J.
dc.creatorLindner, A.
dc.creatorCreton, C.
dc.date2008-04-24
dc.date2008-08-28
dc.date.accessioned2026-07-07T09:58:36Z
dc.date.available2026-07-07T09:58:36Z
dc.descriptionWe study pattern formation during tensile deformation of confined viscoelastic layers. The use of a model system (PDMS with different degrees of crosslinking) allows us to go continuously from a viscous liquid to an elastic solid. We observe two distinct regimes of fingering instabilities: a regime called "elastic" with interfacial crack propagation where the fingering wavelength only scales with the film thickness, and a bulk regime called "viscoelastic" where the fingering instability shows a Saffman-Taylor-like behavior. We find good quantitative agreement with theory in both cases and present a reduced parameter describing the transition between the two regimes and allowing to predict the observed patterns over the whole range of viscoelastic properties.
dc.description4 pages, 7 figures, typos corrected, figure 5 replaced
dc.identifierhttps://arxiv.org/abs/0804.3873
dc.identifierhttp://arxiv.org/abs/0804.3873
dc.identifierPRL 101, 074503 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.074503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167774
dc.subjectSoft Condensed Matter
dc.titlePattern Formation During Deformation of a Confined Viscoelastic Layer: From a Viscous Liquid to a Soft Elastic Solid
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