000014343 001__ 14343 000014343 005__ 20161115100148.0 000014343 04107 $$aeng 000014343 046__ $$k2016-08-21 000014343 100__ $$aLiu, Yuanpeng 000014343 24500 $$aTorsional wrinkling behaviour of annular thin elastic sheets 000014343 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers 000014343 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016 000014343 506__ $$arestricted 000014343 520__ $$2eng$$aTorsional deformations in annular thin sheets is a challenging problem in theoretical mechanics due to destabilizing torsional shearing stresses that result in wrinkling. Determining the location, pattern, and evolution of wrinkles in these problems has important applications in design and is an area of increasing interest in the fields of physics and engineering. In this work, nondimensional nonlinear von Karman buckling equations are established, which are solved by the finite difference method to acquire the post-wrinkling characteristics. The proposed theoretical model can accurately predict the critical wrinkling behavior and post-wrinkling characteristics of the annular thin sheets, which are verified by the experimental measurement based on the digital image correlation (DIC) technique. 000014343 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb. 000014343 653__ $$a 000014343 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016 000014343 720__ $$aLiu, Yuanpeng 000014343 8560_ $$ffischerc@itam.cas.cz 000014343 8564_ $$s159003$$uhttps://invenio.itam.cas.cz/record/14343/files/PO.SM14-1.11.315.pdf$$yOriginal version of the author's contribution as presented on CD, page 2831, code PO.SM14-1.11.315 . 000014343 962__ $$r13812 000014343 980__ $$aPAPER