2005
DOI: 10.1143/jjap.44.1055
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Simulation of Strain-Induced Microwrinkle Pattern Dynamics with Memory Effect

Abstract: We computationally investigate the compression-induced reversible stripe rearrangement process, which is experimentally observed for the spontaneously formed pattern of microwrinkles on a Pt-sputtered elastomer surface. We propose a rough model for the wrinkles in a small bending regime considering the pattern memory of the neutral state with the strength parameter s, which should be attributable to the degree of material flow during initial pattern formation. The original pattern recovers after a compressive … Show more

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Cited by 12 publications
(8 citation statements)
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“…Note that the preordered wrinkle pattern is remembered to some extent at room-temperature, according to the previous study. , Thus, an irreversible process, such as material flow or plastic deformation, possibly occurs during pattern formation. This suggests that the pattern is stable or fixed, i.e., the waves of wrinkles do not travel, under ambient conditions without any mechanical perturbation.…”
Section: Methodsmentioning
confidence: 70%
“…Note that the preordered wrinkle pattern is remembered to some extent at room-temperature, according to the previous study. , Thus, an irreversible process, such as material flow or plastic deformation, possibly occurs during pattern formation. This suggests that the pattern is stable or fixed, i.e., the waves of wrinkles do not travel, under ambient conditions without any mechanical perturbation.…”
Section: Methodsmentioning
confidence: 70%
“…In a subsequent publication, Ohzono et al were able to reproduce their earlier experimental observations using a computer simulation models. 40,41 Their study confirmed that the strong memory of the initial wrinkling pattern was responsible for the recovery of the sample to the initial morphology after the strain, which was used to align the wrinkles, was removed.…”
Section: Wrinkling In Rigid Sheets On Elastic Foundationsmentioning
confidence: 83%
“…A variety of authors observed, both experimentally and in modeling, surface buckling due to stresses associated with stiff surface layers on flexible substrates 41–45. This surface roughness can often be described by a characteristic buckling wavelength, with the thickness of the modified surface layer and thermal state of the underlying film (thermally expanded prior to surface modification or heated above the T g ) as important key parameters.…”
Section: Discussionmentioning
confidence: 99%