Creases on the interface between two soft materials
Citation
Jin, Lihua, Dayong Chen, Ryan C. Hayward, and Zhigang Suo. 2014. “Creases on the Interface Between Two Soft Materials.” Soft Matter 10 (2): 303–311. doi:10.1039/c3sm51512e.Abstract
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.Terms of Use
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http://nrs.harvard.edu/urn-3:HUL.InstRepos:25757883
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