Abstract
The tension–tension fatigue behaviours of quasi-isotropic woven-ply thermoplastic (Polyphenylene Sulphide – PPS) and thermosetting (Epoxy)-based laminates are discussed in this paper. The service temperature of these materials is such that Tg|C/PPS<T<Tg|Epoxy, and matrix ductility is expected to reflect on the fatigue behaviour. The contribution to the knowledge base from this work rests on the experimental evidence supported by microscopic evaluation at different stages of the fatigue life and fracture surface analysis. These observations exhibit two distinct damage accumulation scenarios in both laminates dominated by fibre breakage in carbon/PPS and debonding, as well as delamination in carbon/epoxy. The potential benefit of matrix-rich regions in woven-fabric laminates is the development of plastic yield zones at the cracks tip as intra- and inter-ply cracks propagate. Depending on matrix ductility, the localized matrix plasticization is instrumental in ruling fatigue damage mechanism, as it may delay the cracks onset and subsequent propagation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Composites Part A: Applied Science and Manufacturing
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.