Jump to ContentJump to Main Navigation
Show Summary Details
More options …

e-Polymers

Editor-in-Chief: Agarwal, Seema / Greiner, Andreas

6 Issues per year


IMPACT FACTOR 2017: 1.111

CiteScore 2017: 1.02

SCImago Journal Rank (SJR) 2017: 0.335
Source Normalized Impact per Paper (SNIP) 2017: 0.430

Online
ISSN
1618-7229
See all formats and pricing
More options …
Volume 4, Issue 1

Issues

Volume 13 (2013)

Volume 12 (2012)

Volume 11 (2011)

Volume 10 (2010)

Volume 9 (2009)

Volume 8 (2008)

Volume 7 (2007)

Volume 6 (2006)

Volume 5 (2005)

Volume 4 (2004)

Volume 3 (2003)

Volume 2 (2002)

Volume 1 (2001)

Time-temperature and time-stress correspondence in nonlinear creep. Experimental behaviour of amorphous polymers and quantitative modelling approaches

Dr. José R. S. André
  • Corresponding author
  • Department of Mechanical Engineering, Technology and Management School, Guarda Polytechnic Institute, Avª Dr. Francisco Sá Carneiro, nº 50, 6300-559 Guarda, Portugal; http://www.ipg.pt; Fax 271 220 123
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ José J. C. Cruz Pinto
  • CICECO, Composite and Ceramic Materials Associate Laboratory / Department of Chemistry, University of Aveiro, Campus of Santiago, 3810-193 Aveiro, Portugal; http://www.dq.ua.pt; Fax 234 370 084
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-08-31 | DOI: https://doi.org/10.1515/epoly.2004.4.1.907

Abstract

Non-linear creep is described by a non-simulative, analytical, dynamic molecular modelling approach. Elementary, molecular-scale, process-relevant frequencies are derived by adequate kinetic formulation. They follow almost exactly an Arrhenius-like behaviour with a range of activation enthalpies. Their relative contribution to the overall macroscopic behaviour of the materials is quantified to account for the materials’ retardation time spectra and final non-Arrhenius behaviour. A new creep compliance equation is derived, yielding a fully coupled timetemperature- stress formulation, with long-term predictive capability. Experimental data for poly(methyl methacrylate) are analysed to identify the extent to which timetemperature and time-stress correspondence relationships may be valid, and it is shown that they are approximations (especially the latter), limited to narrow ranges of experimental variables, in contrast to the proposed model, which more reasonably fits the experimental behaviour.

About the article

Published Online: 2013-08-31

Published in Print: 2004-12-01


Citation Information: e-Polymers, Volume 4, Issue 1, 079, ISSN (Online) 1618-7229, ISSN (Print) 2197-4586, DOI: https://doi.org/10.1515/epoly.2004.4.1.907.

Export Citation

© 2013 by Walter de Gruyter GmbH & Co..Get Permission

Comments (0)

Please log in or register to comment.
Log in