Effect of change in coil orientation for SMA spring

K. E. Kim, J. H. Han, Yun Mo Sung, K. K. Jee, W. Y. Jang

Research output: Contribution to journalArticle

Abstract

This work is concerned with fabrication of SMA coil spring which shows perfect recovery despite slip deformation by using the 'initial tension'. We have developed a new method of providing the initial tension to SMA springs by changing coil orientation after the shape setting treatment. In this paper, some examples are introduced that a perfect recovery with a greater force, though permanent deformation is involved in the deformation, can be attained by the initial tension. Besides generation of two way shape memory effect is presented using the reverse of coil orientation.

Original languageEnglish
JournalJournal of Alloys and Compounds
Volume577
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2013 Nov 15

Keywords

  • Initial tension
  • Perfect recovery
  • Reverse of coil orientation
  • SMA coil spring
  • Two way shape memory effect

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

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