Lifetime Assessment of Load-Bearing Polymer Glasses: The Influence of Physical Ageing

Roy Visser, Teunis Cornelis Bor, Mannes Wolters, Joris G.F. Wismans, Leon E. Govaert

Research output: Contribution to journalArticleAcademic

11 Citations (Scopus)

Abstract

The timescale at which ductile failure occurs in loaded glassy polymers can be successfully predicted using the engineering approach presented in a previous publication. In this paper the influence of progressive physical ageing on the plastic deformation behaviour of unplasticised poly(vinyl chloride) (uPVC) is characterised and incorporated in the existing approach. With the modification it is possible to quantitatively predict long-term failures which show a so-called endurance limit. The predictions are compared with failure data of uPVC specimens which were subjected to constant or dynamic loads. In dynamic loading conditions a second type of failure mode was observed: fatigue crack growth. A brief study on the influence of the frequency and stress ratio of the applied stress signal shows that crack growth failure is not expected to occur within experimentally reasonable timescales for constant loading conditions.
Original languageUndefined
Pages (from-to)1066-1081
JournalMacromolecular materials and engineering
Volume295
Issue number12
DOIs
Publication statusPublished - 2010

Keywords

  • IR-75643

Cite this

Visser, Roy ; Bor, Teunis Cornelis ; Wolters, Mannes ; Wismans, Joris G.F. ; Govaert, Leon E. / Lifetime Assessment of Load-Bearing Polymer Glasses: The Influence of Physical Ageing. In: Macromolecular materials and engineering. 2010 ; Vol. 295, No. 12. pp. 1066-1081.
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Lifetime Assessment of Load-Bearing Polymer Glasses: The Influence of Physical Ageing. / Visser, Roy; Bor, Teunis Cornelis; Wolters, Mannes; Wismans, Joris G.F.; Govaert, Leon E.

In: Macromolecular materials and engineering, Vol. 295, No. 12, 2010, p. 1066-1081.

Research output: Contribution to journalArticleAcademic

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AU - Bor, Teunis Cornelis

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AU - Govaert, Leon E.

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AB - The timescale at which ductile failure occurs in loaded glassy polymers can be successfully predicted using the engineering approach presented in a previous publication. In this paper the influence of progressive physical ageing on the plastic deformation behaviour of unplasticised poly(vinyl chloride) (uPVC) is characterised and incorporated in the existing approach. With the modification it is possible to quantitatively predict long-term failures which show a so-called endurance limit. The predictions are compared with failure data of uPVC specimens which were subjected to constant or dynamic loads. In dynamic loading conditions a second type of failure mode was observed: fatigue crack growth. A brief study on the influence of the frequency and stress ratio of the applied stress signal shows that crack growth failure is not expected to occur within experimentally reasonable timescales for constant loading conditions.

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