Design of Hierarchically Cut Hinges for Highly Stretchable and Reconfigurable Metamaterials with Enhanced Strength

Yichao Tang; Gaojian Lin; Lin Han; Songgang Qiu; Shu Yang; Jie Yin

doi:10.1002/adma.201502559

Design of Hierarchically Cut Hinges for Highly Stretchable and Reconfigurable Metamaterials with Enhanced Strength

Adv Mater. 2015 Nov 25;27(44):7181-90. doi: 10.1002/adma.201502559. Epub 2015 Oct 13.

Authors

Yichao Tang¹, Gaojian Lin¹, Lin Han², Songgang Qiu³, Shu Yang⁴, Jie Yin¹

Affiliations

¹ Applied Mechanics of Materials Laboratory, Department of Mechanical Engineering, Temple University, 1947 North 12th Street, Philadelphia, PA, 19122, USA.
² School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, 19104, USA.
³ Department of Mechanical Engineering, Temple University, 1947 North 12th Street, Philadelphia, PA, 19122, USA.
⁴ Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA.

PMID: 26461470
DOI: 10.1002/adma.201502559

Abstract

Applying hierarchical cuts to thin sheets of elastomer generates super-stretchable and reconfigurable metamaterials, exhibiting highly nonlinear stress-strain behaviors and tunable phononic bandgaps. The cut concept fails on brittle thin sheets due to severe stress concentration in the rotating hinges. By engineering the local hinge shapes and global hierarchical structure, cut-based reconfigurable metamaterials with largely enhanced strength are realized.

Keywords: hierarchically cut hinges; nonlinear and tailorable mechanical properties; reconfigurable metamaterials; stretchable metamaterials; tunable phononic bandgap.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Dimethylpolysiloxanes / chemistry
Elastomers* / chemistry
Engineering
Mechanical Phenomena*
Stress, Mechanical

Substances

Dimethylpolysiloxanes
Elastomers
baysilon