Moisture-temperature equivalency in creep analysis of a heterogeneous-matrix carbon fibre/epoxy composite

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Abstract

The objective of this study was to investigate the creep sensitivity of a heterogeneous-matrix carbon fibre composite as related to time, temperature and moisture. An interlaminar-toughened composite (Toray T800H/3900-2) was used as a model system for creep analysis. Constant-loading tensile creep experiments were performed on [±45]2s laminate specimens at several isothermal temperatures for two moisture levels: dry and wet (0.9% moisture content). Long-term predictions of creep of the toughened composite could be made using the analytical results from this study. The effect of absorbed moisture in the laminate on creep compliance was shown to be quantitatively equivalent to an increase in temperature, and the temperature-moisture equivalency was established with the aid of a polymer-diluent miscibility theory.

Original languageEnglish
Pages (from-to)425-430
Number of pages6
JournalComposites
Volume25
Issue number6
DOIs
Publication statusPublished - 1994 Jul

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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