From wrinkles to creases in elastomers: the instability and imperfection-sensitivity of wrinkling
By Yanping Cao, J. W. Hutchinson. Proceedings of the Royal Society A, 2012
249 citations recorded by the source corpus.
The stability of the wrinkling mode experienced by a compressed half-space of neo-Hookean material is investigated using analytical and numerical methods to study the post-bifurcation behaviour of periodic solutions. It is shown that wrinkling is highly unstable owing to the nonlinear interaction among the multiple modes associated with the critical compressive state. Concomitantly, wrinkling is sensitive to exceedingly small initial imperfections that significantly reduce the compressive strain at which the instability occurs. The study provides insight into the connection between wrinkling and an alternative surface mode, the finite amplitude crease or sulcus. The shape of the critical combination of wrinkling modes has the form of an incipient crease, and a tiny initial imperfection can trigger a wrinkling instability that collapses into a crease.
Subfields: Biomedical Engineering, Civil and Structural Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/fca0fddb87313983fa544cdc4fbe21f13b2efc1c
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In Biomedical Engineering
In Civil and Structural Engineering
- Yanping Cao
- J. W. Hutchinson
- H. Wadley
- Norman A. Fleck
- V. Deshpande
- A. G. Evans
- Zhenyu Xue
- Lorenzo Valdevit
In Mechanical Engineering
Citations in the corpus
- Wrinkling Phenomena in Neo-Hookean Film/Substrate Bilayers (2012, methodology): “1 As recent work [6] has shown, surface wrinkling of a homogeneous half-space is highly unstable and imperfection-sensitive such that compressive strains as large as 0.456 in the film are not likely to be achieved.”
- Localized ridge wrinkling of stiff films on compliant substrates (2012, unknown): “In fact, period-doubling and folding do not occur in systems with no pre-stretch until the system has been compressed to a strain which is typically 0 0.2 (Cao and Hutchinson, 2012a).”