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Fatigue evaluation and dynamic mechanical thermal analysis of sisal fibre–thermosetting resin composites

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dc.creator Towo, Arnold N
dc.creator Ansell, Martin P.
dc.date 2015-12-15T12:45:00Z
dc.date 2015-12-15T12:45:00Z
dc.date 2007-08-10
dc.date.accessioned 2018-03-24T18:47:42Z
dc.date.available 2018-03-24T18:47:42Z
dc.identifier Towo AN, Ansell MP, Fatigue evaluation and dynamic mechanical thermal analysis, Compos Sci Technol (2007), doi:10.1016/j.compscitech.2007.08.022
dc.identifier http://hdl.handle.net/123456789/129
dc.identifier.uri http://hdl.handle.net/123456789/2132
dc.description Sisal composites were manufactured in a hot press from as-received and 0.06 M NaOH treated sisal fibres with polyester and epoxy resin matrices. Tensile tests were conducted on the composites to establish loading levels for fatigue testing. A fatigue evaluation of the sisal fibre–thermosetting resin composites was undertaken at loading levels of 75%, 60%, 50% and 35% of static tensile strength and at an R ratio of 0.1. S–N curves for the composites are presented for untreated and 0.06 M NaOH treated sisal fibres. Epoxy matrix composites have a longer fatigue life than polyester matrix composites. The effect of chemical treatment on fatigue life is significantly positive for polyester matrix composites but has much less influence on the fatigue life of epoxy matrix composites. Dynamic mechanical thermal analysis (DMTA) was conducted on samples from failed epoxy resin fatigue specimens and the influence of fatigue history on the Tanδ peak temperatures and Tg of the composites is examined. Significant shifts in Tg are observed following fatigue testing. The fatigue performance of natural fibre composites suggests that they are suitable for use in dynamically loaded structures and may be used as a substitute for Glass Fibre Reinforced Plastic composites in fatigue.
dc.description Commonwealth Scholarship and Fellowships Plan
dc.language en
dc.publisher Elsevier
dc.subject Fibres
dc.subject Interfacial strength
dc.subject Sisal
dc.subject DMTA
dc.subject Fatigue
dc.title Fatigue evaluation and dynamic mechanical thermal analysis of sisal fibre–thermosetting resin composites
dc.type Journal Article, Peer Reviewed


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