Analysis of controlled beam deflections using SMA wires

L Catherine Brinson*, M. S. Huang, C. Boller, W. Brand

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

In this paper the active control of beam deflection through heating and cooling of Shape Memory Alloy (SMA) wires is examined. A phenomenological constitutive law for SMA wires is coupled with beam theory to provide predictions of beam shape upon temperature change in the SMA actuator. Both the linear and nonlinear beam theory are presented, enabling calculation of large deflections. Examples for a single wire attached at the tip of a uniform beam are given, but the procedure can easily be generalized for other configurations and utilized in control algorithms. Issues of design constraints for shape control with shape memory wires are addressed and the model is qualitatively verified by experiments.

Original languageEnglish (US)
Pages (from-to)12-25
Number of pages14
JournalJournal of Intelligent Material Systems and Structures
Volume8
Issue number1
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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