PHYSICAL AGEING AND STRESS RELAXATION IN VISCOELASTIC COMPOSITES.

Xiaoming Tao, R. Postle

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The slow process of so called 'ageing' occurs when an amorphous solid is not in thermodynamic equilibrium and its temperature is below the glass transition. The gradual approach towards equilibrium affects the mechanical properties of the polymer. Generally speaking, the material becomes stiffer and more brittle, its damping and stress relaxation rate decrease. These changes can be represented by a horizontal shift of the stress relaxation curve on a logarithmic time scale. A theoretical analysis of polymer ageing should give satisfactory explanation of the mechanisms involved in amorphous solids and multiphase composites. The main purpose of this paper is to investigate the effect of ageing on the stress relaxation moduli of polymer composites in terms of their constituent phases. The influence of temperature and fibre structure on ageing is also discussed.
Original languageEnglish
Title of host publication[No Source Information Available]
PublisherRoyal Australian Chemical Inst, Polymer Div
Pages1-3
Number of pages3
ISBN (Print)0909589437
Publication statusPublished - 1 Dec 1985
Externally publishedYes
EventPolymer 85: An International Symposium on Characterization and Analysis of Polymers - Preprints. -
Duration: 1 Dec 1985 → …

Conference

ConferencePolymer 85: An International Symposium on Characterization and Analysis of Polymers - Preprints.
Period1/12/85 → …

ASJC Scopus subject areas

  • Engineering(all)

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