Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session S21: Extreme Mechanics
8:00 AM–10:36 AM,
Thursday, March 17, 2022
Room: McCormick Place W-185D
Sponsoring
Unit:
DSOFT
Chair: Lucia Stein-Montalvo, Princeton University
Abstract: S21.00011 : Crumpled Kirigami*
10:00 AM–10:12 AM
Presenter:
Wathsala Jayawardana
(North Dakota State University)
Authors:
Wathsala Jayawardana
(North Dakota State University)
Yangchao Liao
(North Dakota State University)
Zhaofan Li
(North Dakota State University)
Wenjie Xia
(North Dakota State University)
Andrew B Croll
(North Dakota State University)
When a thin sheet crush into a tight ball, we say that it is crumpled. Surprisingly, a 3D spherical crumple made out of a flimsy 2D sheet of paper is quite rigid, even if a large amount of the crumple's volume consists of air. Crumples consist of several complex long-range ( folds, bends, and ridges) and short-range (D-cones) structural features. Numerous studies have been conducted on different crumpled sheets under the assumption of the dominance of one or the other of these substructures. In our work we study crumples made out of three materials: polydimethylsiloxane (PDMS), polycarbonate (PC), and paper. We add cut patterns to the sheets before crumpling under the hypothesis that the change in topography will inhibit long-range structures from forming. Remarkably, our simple crushing experiment shows that the basic behavior is unaltered by the change in topography, strongly suggesting that long-range features are not dominant.
*This work was funded through the Army Research Office under grant W911NF-20-1-0208
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