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Design of Hierarchically Cut Hinges for Highly Stretchable and Reconfigurable Metamaterials with Enhanced Strength
Author(s) -
Tang Yichao,
Lin Gaojian,
Han Lin,
Qiu Songgang,
Yang Shu,
Yin Jie
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201502559
Subject(s) - hinge , materials science , metamaterial , brittleness , stress (linguistics) , thin film , composite material , stretchable electronics , elastomer , nanotechnology , optoelectronics , structural engineering , electronics , electrical engineering , engineering , linguistics , philosophy
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.