Creases on the interface between two soft materials | Zendy

Lihua Jin | Zendy; Dayong Chen | Zendy; Ryan C. Hayward | Zendy; Zhigang Suo | Zendy

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Creases on the interface between two soft materials

Author(s) -

Lihua Jin,

Dayong Chen,

Ryan C. Hayward,

Zhigang Suo

Publication year - 2013

Publication title -

soft matter

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 170

eISSN - 1744-6848

pISSN - 1744-683X

DOI - 10.1039/c3sm51512e

Subject(s) - compression (physics) , deformation (meteorology) , materials science , bifurcation , amplitude , interface (matter) , surface (topology) , composite material , scale (ratio) , geometry , mathematics , optics , physics , nonlinear system , wetting , sessile drop technique , quantum mechanics

Theory and experiment are presented to show that an interface between two soft materials under compression can form creases, a type of bifurcation distinct from wrinkles. While creases bifurcate from a state of flat interface by a deformation localized in space and large in amplitude, wrinkles bifurcate from a state of flat interface by a deformation nonlocal in space and infinitesimal in amplitude. The interfacial creases set in at a lower critical compression than interfacial wrinkles, but higher than surface creases. The condition for the onset of interfacial creases is scale-free, and is calculated in terms of elastic moduli, pre-strains and applied strains.

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