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Compressive failure of hybrid multidirectional fibre-reinforced composites
RISE - Research Institutes of Sweden, Materials and Production, SICOMP.ORCID iD: 0000-0002-1594-2688
Imperial College London, UK.
GKN Aerospace CTC, UK.
Physical Sciences Department DSTL, UK.
2015 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 71, p. 40-58Article in journal (Refereed) Published
Abstract [en]

In this paper, the hybridisation of multidirectional carbon fibre-reinforced composites as a means of improving the compressive performance is studied. The aim is to thoroughly investigate how hybridisation influences the laminate behaviour under different compression conditions and thus provide an explanation of the "hybrid effect". The chosen approach was to compare the compressive performance of two monolithic carbon fibre/epoxy systems, CYTEC HTS/MTM44-1 and IMS/MTM44-1, with that of their respective hybrids. This was done by keeping the same layup throughout ((0/90/45/-45)2S) while replacing the angle plies in one case or the orthogonal plies in the other case with the second material, thus producing two hybrid systems. To investigate the compressive performance of these configurations, compact and plain compression test methods were employed which also allowed studying the sensitivity of compressive failure to specimen geometry and loading conditions. The experimental results and the subsequent fractographic analysis revealed that the hybridisation of selective ply interfaces influenced the location and severity of the failure mechanisms. Finally, in light of this knowledge, an update of the generic sequence of events, previously suggested by the authors, which lead to global fracture in multidirectional fibre-reinforced composites under compression is presented. 

Place, publisher, year, edition, pages
Elsevier Ltd , 2015. Vol. 71, p. 40-58
Keywords [en]
Carbon fibres, Fracture, Electron microscopy, Fractography, Carbon, Carbon fibers, Compression testing, Fiber reinforced plastics, Fibers, Fracture, Fracture mechanics, Hybrid systems, Laminates, Reinforcement, Carbon fibre reinforced composites, Compression test method, Compressive failure, Compressive performance, Fibre reinforced composites, Fractographic analysis, Sequence of events, Specimen geometry, Failure (mechanical)
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Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-41048DOI: 10.1016/j.compositesa.2015.01.002Scopus ID: 2-s2.0-84921454107OAI: oai:DiVA.org:ri-41048DiVA, id: diva2:1377034
Note

Funding details: Engineering and Physical Sciences Research Council, EP/G005648/1; Funding text 1: The authors wish to acknowledge the support of EPSRC and DSTL, on the Crack Arrest and Self-Healing in COMPosite Structures (CRASHCOMPS) Project (EP/G005648/1).

Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2019-12-10Bibliographically approved

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