Modeling of the bending actuation of shape memory composites

J. Terzak, P. Cortes, A. J.W. McClung, J. W. Baur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The present paper investigates the model that predicts the bending actuation properties of a Shape Memory Composite (SMC) based on a Shape Memory Polymer (SMP) and Shape Memory Alloy (SMA) wires. The proposed model determines the volume fraction of SMA in the SMC to properly balance the activation forces caused by temperature changes in the system. Indeed, the actuation forces in the composite appear to be caused by the glassy-rubbery transient behavior of the polymer, as well as by the phase transitions within the alloy. These transition temperatures, combined with the volume fraction of the SMA within the composite, provide the necessary balance of activation forces. Here, the modeling has been conducted using classic mechanical theory. The modeling includes the temperature effects on the mechanical properties of both materials in the composite, the most prevalent being the Elastic Modulus. The analysis has shown that a limited volume fraction of SMA in the range of 0.5% is enough to attain controlled deflection on the composite.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2012, MS and T 2012
Pages575-582
Number of pages8
StatePublished - 2012
Externally publishedYes
EventMaterials Science and Technology Conference and Exhibition 2012, MS and T 2012 - Pittsburgh, PA, United States
Duration: Oct 7 2012Oct 11 2012

Publication series

NameMaterials Science and Technology Conference and Exhibition 2012, MS and T 2012
Volume1

Other

OtherMaterials Science and Technology Conference and Exhibition 2012, MS and T 2012
Country/TerritoryUnited States
CityPittsburgh, PA
Period10/7/1210/11/12

Keywords

  • FEA modeling
  • Morphing properties
  • Shape memory alloys
  • Shape memory polymers

ASJC Scopus subject areas

  • Materials Science (miscellaneous)

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