NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.18 [2011] >
IJEMS Vol.18(1) [February 2011] >

Title: Modelling the thermomechanical behaviour of shape memory polymer materials
Authors: Sinha, Rahul P
Jarali, Chetan S
Raja, S
Keywords: Shape memory polymer
Shape memory effect
Constitutive model
Issue Date: Feb-2011
Publisher: NISCAIR-CSIR, India
Abstract: The increasing applications of smart structures in technology development have led to a wide variety of new high performance materials, especially smart polymers. In the present work, a uniaxial model for shape memory polymer (SMP) is analyzed and a consistent form of the constitutive law is proposed. The coefficient of thermal expansion is expressed using the rule of mixtures approach. In this study, a comparison is made between thermal strains computed by using the analogous rule of mixture equation and the empirical relation that has been stated on the basis of experimental findings. The inconsistency in the computation of coefficient of thermal expansion is addressed. Furthermore, the consistent form of the stored strain and thermal strain expressions are also presented using fourth order Runge-Kutta method. A noteworthy difference is observed due to change in temperature. Moreover, the difference between the proposed analytical solutions with the empirical relation is brought out. Finally, the consistent form of the constitutive model with modified CTE and strain expressions for the SMP is presented.
Page(s): 15-23
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.18(1) [February 2011]

Files in This Item:

File Description SizeFormat
IJEMS 18(1) 15-23.pdf324.18 kBAdobe PDFView/Open
 Current Page Visits: 125 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 163929 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: