Geometry-dependent stripe rearrangement processes induced by strain on preordered microwrinkle patterns

Takuya Ohzono, Masatsugu Shimomura

    Research output: Contribution to journalArticlepeer-review

    48 Citations (Scopus)

    Abstract

    A preordered microwrinkle pattern on a metal-capped surface of a soft elastomer is employed to elucidate the elementary buckling phenomenon during strain-induced stripe rearrangement processes. The preordered one-dimensional stripe tends to align perpendicular to the direction of strain reversibly when lateral compressive strain is applied on the substrate at some angle φ with respect to the stripe orientation. For any value of strain, the film surface can be decomposed in domains containing stripes with two different orientations, namely the original and applied strain orientations. As strain is increased, the domains of the second type of stripes progressively grow and invade the whole surface. Interestingly, the domain shapes during growth are composed of parallelogram units that simply depend on φ and stripe wavelength. Moreover, domain growth proceeds in characteristic directions depending on the shape of the domain unit.

    Original languageEnglish
    Pages (from-to)7230-7237
    Number of pages8
    JournalLangmuir
    Volume21
    Issue number16
    DOIs
    Publication statusPublished - 2005 Aug 2

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Spectroscopy
    • Electrochemistry

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