Nonlinear Geometric Effects in Mechanical Bistable Morphing Structures

被引：128

作者：

Chen, Zi ^{[1
,2
,3
]}

Guo, Qiaohang ^{[4
,5
]}

Majidi, Carmel ^{[6
]}

Chen, Wenzhe ^{[4
,7
]}

Srolovitz, David J. ^{[8
]}

Haataja, Mikko P. ^{[1
,2
,9
,10
]}

机构：

[1] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA

[2] Princeton Univ, Princeton Inst Sci & Technol Mat PRISM, Princeton, NJ 08544 USA

[3] Washington Univ, Dept Biomed Engn, St Louis, MO 63130 USA

[4] Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

[5] Fujian Univ Technol, Dept Math & Phys, Fuzhou 350108, Fujian, Peoples R China

[6] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA

[7] Fujian Univ Technol, Dept Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

[8] Inst High Performance Comp, Singapore 138632, Singapore

[9] Princeton Univ, Program Appl & Computat Math, Princeton, NJ 08544 USA

[10] Inst Adv Study, Sch Math, Princeton, NJ 08540 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 11期

基金：

美国国家科学基金会;

关键词：

THIN; SHELLS; DEFORMATION; ELECTRONICS; INSTABILITY; SHAPES; MODELS; SHEETS;

D O I：

10.1103/PhysRevLett.109.114302

中图分类号：

O4 [物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Bistable structures associated with nonlinear deformation behavior, exemplified by the Venus flytrap and slap bracelet, can switch between different functional shapes upon actuation. Despite numerous efforts in modeling such large deformation behavior of shells, the roles of mechanical and nonlinear geometric effects on bistability remain elusive. We demonstrate, through both theoretical analysis and tabletop experiments, that two dimensionless parameters control bistability. Our work classifies the conditions for bistability, and extends the large deformation theory of plates and shells.

引用

页数：5

共 41 条

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Edge Effects Determine the Direction of Bilayer Bending [J].