Structure-properties relations in titanium-based thermoplastic fiber-metal laminates

P. Cortés, W. J. Cantwell

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31 Scopus citations

Abstract

This paper investigates the interfacial, tensile, and fatigue properties of a titanium alloy fiber-metal laminate (Ti-FML) based on woven glass-fiber-reinforced poly-etherimide (GF/PEI). Initial tests, using the single cantilever beam (SCB) geometry have shown that it is not necessary to surface treat the titanium alloy in order to achieve a high value of metal-composite interfacial fracture toughness. Tensile tests have shown that the mechanical properties of the FML lie between those offered by its constituent materials. Tension-tension fatigue tests have shown that the fatigue lives of these laminates are superior to those offered by the plain titanium alloy. The mechanical properties of this glass fiber/PEI FML have also been compared with those offered by an FML based on a unidirectional carbon-fiber-reinforced polyetheretherketone (CF/PEEK) composite. Here, it has been shown that although the fatigue properties of this woven GF/PEI composite are inferior to those of the CF/PEEK FML, they do offer a higher temperature capability due to the higher glass transition temperature of the PEI matrix.

Original languageBritish English
Pages (from-to)264-270
Number of pages7
JournalPolymer Composites
Volume27
Issue number3
DOIs
StatePublished - Jun 2006

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