Creep and quasi-relaxation examination of artificially aged plasticized PVC

D. Kocsis, G. Deák, S. Kéki, Z. A. Godó, R. Horváth

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Abstract

This paper introduces long-Term tensile and quasi-relaxation tests of polyvinylchloride (PVC) fibers. During creep, the longitudinal and cross-sectional changes were measured of unaged and aged PVC fibers loaded with the same weight. In the quasi-relaxation section, where deformation was frozen, the stress changes were determined. During the examination of the creep, the Poynting-Thomson model described the phenomenon with sufficient accuracy (min R2 0.9628) and the calculated parameter values characterized the aging process well. In the relaxed phase, the Poynting-Thomson model was not adequate, and, therefore, the second-order time derivatives were also involved in the applied model. Aging significantly resulted in parameter changes in this section as well.

Original languageEnglish
JournalJournal of Testing and Evaluation
Volume45
Issue number4
DOIs
Publication statusPublished - Jul 1 2017

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Keywords

  • Aging
  • Creep
  • Material property tests
  • Pvc
  • Relaxation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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