Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session B48: Extreme Mechanical Instabilities, Defects, and Large Deformations I
11:15 AM–2:15 PM,
Monday, March 5, 2018
LACC Room: 510
Sponsoring Units: GSNP GSOFT
Chair: Efi Efrati, Weizmann Institute of Science
Abstract: B48.00008 : Nascent deformations of slender elastic solids under applied tension and twist*
12:39 PM–12:51 PM
(950 Main St, Clark Univ)
We discuss experiments on the deformations of slender elastic solids held under tension at two ends and then twisted through a prescribed angle. While a rich phase set of buckled structures are observed in ribbons for large enough twist and tension [1,2], here we focus on the the regime before the onset of buckling instabilities. We measure the shape and deformation field observed as a function of applied tension and twist to understand the development of stress in the solid as a function of geometric aspect ratios. Thus, the competition of geometry and elasticity on the evolving structure is examined as a function of distance from the boundary. The shapes obtained will be discussed in terms of the strain relaxed shapes possible in the system.
. "Helicoids, Wrinkles, and Loops in Twisted Ribbons," Julien Chopin and Arshad Kudrolli, Phys. Rev. Lett.111, 174302 (2013).
. "Disclinations, e-cones, and their interactions in extensible sheets," J. Chopin and A. Kudrolli, Soft Matter, 124457-4462 (2016).
*This work was supported by the National Science Foundation under grant number DMR 1508186.
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