Role of viscoelasticity in predicting the shape memory effect of polymers

  • Diani Julie
  • , Gilormini Pierre
  • , Frédy Carole
  • , A. R. Ingrid

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Torsional tests are used to study the shape memory property of an amorphous thermoset epoxy. The effect of the thermal history on the shape recovery is emphasized since most existing models are unable to reproduce the effect of the heating rate without using adjusted parameters. Here, the shape memory effect is modeled based only on the polymer viscoelasticity and its time-temperature superposition. The model parameters are solely determined from testing the material in dynamic mechanical analysis (DMA) and uniaxial tension at high temperatures. The parameters are easily introduced in a standard finite element code (ABAQUS) to accurately and precisely simulate and predict the shape memory behavior of the material submitted to various heating history. The simulation work highlights the crucial need for accurate temperature measurements in order to precisely predict the shape recovery of such a material.

Original languageEnglish
Title of host publicationExperimental and Applied Mechanics - Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics
Pages97-104
Number of pages8
DOIs
Publication statusPublished - 11 Feb 2013
Externally publishedYes
Event2012 Annual Conference on Experimental and Applied Mechanics - Costa Mesa, CA, United States
Duration: 11 Jun 201214 Jun 2012

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume4
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

Conference2012 Annual Conference on Experimental and Applied Mechanics
Country/TerritoryUnited States
CityCosta Mesa, CA
Period11/06/1214/06/12

Keywords

  • Modeling
  • SMP
  • Shape memory polymer
  • Thermomechanical behavior

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