Spontaneous and deterministic three-dimensional curling of pre-strained elastomeric bi-strips

被引：63

作者：

Huang, Jiangshui ^{[1
]}

Liu, Jia ^{[1
]}

Kroll, Benedikt ^{[1
]}

Bertoldi, Katia ^{[1
]}

Clarke, David R. ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

SOFT MATTER | 2012年 / 8卷 / 23期

基金：

美国国家科学基金会;

关键词：

TENDRIL PERVERSION;

D O I：

10.1039/c2sm25278c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three dimensional curls ("hemi-helices") consisting of multiple, periodic and alternating helical sections of opposite chiralities, separated by perversions, are one of a variety of complex shapes that can be produced by a simple generic process consisting of pre-straining one elastomeric strip, joining it side-by-side to another and then releasing the bi-strip. The initial wavelength of the hemi-helix and the number of perversions are determined by the strip cross-section, the constitutive behavior of the elastomer and the value of the pre-strain. The hemi-helix has no net twist. Topologically, the perversions separate regions of the hemi-helix deforming principally by bending from those where twisting dominates.

引用

页码：6291 / 6300

页数：10

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