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dc.contributor.authorMeng, Maozhou
dc.contributor.authorRizvi, Jahir
dc.contributor.authorGrove, Stephen
dc.contributor.authorLe, Huirong
dc.date.accessioned2016-10-17T12:07:19Z
dc.date.available2016-10-17T12:07:19Z
dc.date.issued2015-08-06
dc.identifier.citationMeng, M. et al (2015) 'Effects of hygrothermal stress on the failure of CFRP composites, Composite Structures, 133:1024en
dc.identifier.issn2638223
dc.identifier.doi10.1016/j.compstruct.2015.08.016
dc.identifier.urihttp://hdl.handle.net/10545/620593
dc.description.abstractThis paper investigates the hygrothermal effects on the failure mechanisms in bending of carbon fibre reinforced polymer (CFRP) composites. Accelerated diffusion testing was carried out by immersion at 50 °C constant temperature and 70 bar hydrostatic pressure to study the effects of fresh or sea water diffusion into pre-preg CFRP laminates. Consequently the composite laminates were tested in bending after 1 and 3 months’ immersion. A three-dimensional finite element analysis (FEA) model was developed to couple the moisture diffusion, hygrothermal expansion and bending. Optical and field emission scanning electronic microscope (SEM) were employed to analyse the failure mechanisms of CFRP composites in bending after immersion. The study showed that the mechanical properties are significantly reduced after short term immersion due to the edge effects, while the damage to the fibre/polymer interface becomes more significant to laminate degradation after longer-term immersion.
dc.language.isoenen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0263822315006935en
dc.rightsArchived with thanks to Composite Structuresen
dc.subjectFibre reinforced compositesen
dc.subjectMechanics of compositesen
dc.subjectFinite element modellingen
dc.titleEffects of hygrothermal stress on the failure of CFRP compositesen
dc.typeArticleen
dc.contributor.departmentUniversity of Plymouthen
dc.identifier.journalComposite Structuresen
refterms.dateFOA2017-11-30T00:00:00Z
html.description.abstractThis paper investigates the hygrothermal effects on the failure mechanisms in bending of carbon fibre reinforced polymer (CFRP) composites. Accelerated diffusion testing was carried out by immersion at 50 °C constant temperature and 70 bar hydrostatic pressure to study the effects of fresh or sea water diffusion into pre-preg CFRP laminates. Consequently the composite laminates were tested in bending after 1 and 3 months’ immersion. A three-dimensional finite element analysis (FEA) model was developed to couple the moisture diffusion, hygrothermal expansion and bending. Optical and field emission scanning electronic microscope (SEM) were employed to analyse the failure mechanisms of CFRP composites in bending after immersion. The study showed that the mechanical properties are significantly reduced after short term immersion due to the edge effects, while the damage to the fibre/polymer interface becomes more significant to laminate degradation after longer-term immersion.


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