Simulation of Strain-Induced Microwrinkle Pattern Dynamics with Memory Effect

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概要

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• 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 perturbation within finite time periods above the specific value of $s$. The simulated stripe rearrangement process shows qualitative agreement with the experimental results. In particular, the hysteretic behavior is reproduced and discussed in relation to $s$.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2005-02-15

著者

• Ohzono Takuya

  Dissipative-hierarchy Structures Laboratory Frontier Research System Riken

• Shimomura Masatsugu

  Dissipative-hierarchy Structures Laboratory Riken Frontier Research System

• Shimomura Masatsugu

  Dissipative-Hierarchy Structures Laboratory, Frontier Research System, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

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• Simulation of Strain-Induced Microwrinkle Pattern Dynamics with Memory Effect
• Simulation of Strain-Induced Microwrinkle Pattern Dynamics with Memory Effect

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