Wrinkling micropatterns regulated by a hard skin layer with a periodic stiffness distribution on a soft material

A wrinkling-based method is proposed to create various surface micropatterns regulated by a hardened skin layer with a periodic stiffness distribution on a soft material. It is shown that the surface patterns generated by this technique are controlled by three fundamental surface deformation modes t...

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Bibliographic Details
Published in:Applied physics letters 2016-01, Vol.108 (2)
Main Authors: Wang, Jiawen, Li, Bo, Cao, Yan-Ping, Feng, Xi-Qiao, Gao, Huajian
Format: Article
Language:English
Subjects:
Applied physics
Deformation
Euler buckling
Micropatterning
Phase diagrams
Skin
Stiffness
Wrinkling
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Summary:A wrinkling-based method is proposed to create various surface micropatterns regulated by a hardened skin layer with a periodic stiffness distribution on a soft material. It is shown that the surface patterns generated by this technique are controlled by three fundamental surface deformation modes that involve sinusoidal wrinkling, Euler buckling, and rigid rotation of the skin. Systematic experiments and a phase diagram validate the efficacy and robustness of the proposed method.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4939741