2. Mechanics of Twistable Electronics

  1. Prof. Takao Someya
  1. Yewang Su1,
  2. Jian Wu1,
  3. Zhichao Fan1,
  4. Keh-Chih Hwang1,
  5. Yonggang Huang2 and
  6. John A. Rogers3

Published Online: 28 DEC 2012

DOI: 10.1002/9783527646982.ch2

Stretchable Electronics

Stretchable Electronics

How to Cite

Su, Y., Wu, J., Fan, Z., Hwang, K.-C., Huang, Y. and Rogers, J. A. (2012) Mechanics of Twistable Electronics, in Stretchable Electronics (ed T. Someya), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany. doi: 10.1002/9783527646982.ch2

Editor Information

  1. The University of Tokyo, Department of Electrical Engineering and Information Systems, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Author Information

  1. 1

    Tsinghua University, Department of Engineering Mechanics, Beijing, 100084, China

  2. 2

    Northwestern University, Departments of Civil and Environmental Engineering and Mechanical Engineering, Evanston, IL 60208, USA

  3. 3

    University of Illinois, Department of Materials Science and Engineering, Urbana, IL 61801, USA

Publication History

  1. Published Online: 28 DEC 2012
  2. Published Print: 19 DEC 2012

ISBN Information

Print ISBN: 9783527329786

Online ISBN: 9783527646982



  • postbuckling;
  • interconnect;
  • island;
  • substrate;
  • mesh structure;
  • twistable electronics


A versatile strategy for fabricating twistable electronics involves controlled buckling of bridge structures in circuits that are configured into open, mesh layouts (i.e., islands connected by bridges) and bonded to elastomeric substrates. An analytical mechanics model is established for accurate postbuckling analysis of the interconnect under twist. Simple, analytical expressions are obtained for the critical twist at the onset of buckling, and for the maximum bending and torsion strains in the structure during postbuckling.