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dc.contributor.authorMeng, Maozhou
dc.contributor.authorRizvi, Jahir
dc.contributor.authorLe, Huirong
dc.contributor.authorGrove, Stephen
dc.date.accessioned2016-10-17T12:05:57Z
dc.date.available2016-10-17T12:05:57Z
dc.date.issued2015-11-29
dc.identifier.citationMeng, et al (2016) 'Multi-scale modelling of moisture diffusion coupled with stress distribution in CFRP laminated composites,' Composite Structures, 138:295, DOI 10.1016/j.compstruct.2015.11.028en
dc.identifier.issn2638223
dc.identifier.doi10.1016/j.compstruct.2015.11.028
dc.identifier.urihttp://hdl.handle.net/10545/620592
dc.description.abstractLaminated composite structures operating in a marine environment are subject to moisture ingress. Due to the slow diffusion process of moisture, the distribution of moisture is not uniform so that the laminates can develop hygrothermal stresses. An accurate prediction of the moisture concentration and the associated hygrothermal stress is vital to the understanding of the effect of marine environment on failure initiation. The present paper investigates the time-dependent moisture diffusion and the stress distribution in carbon fibre reinforced polymeric (CFRP) composites by means of experimental study and Finite Element Analysis (FEA). Samples were made from CFRP pre-preg autoclave-cured, and then immersed in fresh water and sea water at a constant 50 °C for accelerated moisture diffusion. Laminates with [0]16, [90]16, [±45]4s lay-up sequences were investigated. A multiscale 3D FEA model was developed to evaluate the interfacial stresses between polymer matrix and carbon fibre and the stress distribution in the composite laminates. The analysis revealed that both the stress distribution and stress level are time-dependent due to moisture diffusion, and the interphase between fibres and matrix plays an important role in both the process of moisture diffusion and the stress/strain transfer. The interlaminar shear stresses of the laminates induced by hygrothermal expansion exhibited a significant specimen edge effect. This is correlated with the experimental observations of the flexural failure of laminates.
dc.language.isoenen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0263822315010314en
dc.rightsArchived with thanks to Composite Structuresen
dc.subjectFibre reinforced compositesen
dc.subjectMechanics of compositesen
dc.subjectMultiscale modellingen
dc.subjectDiffusionen
dc.titleMulti-scale modelling of moisture diffusion coupled with stress distribution in CFRP laminated compositesen
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentUniversity of Plymouthen
dc.identifier.journalComposite Structuresen
refterms.dateFOA2018-03-14T00:00:00Z
html.description.abstractLaminated composite structures operating in a marine environment are subject to moisture ingress. Due to the slow diffusion process of moisture, the distribution of moisture is not uniform so that the laminates can develop hygrothermal stresses. An accurate prediction of the moisture concentration and the associated hygrothermal stress is vital to the understanding of the effect of marine environment on failure initiation. The present paper investigates the time-dependent moisture diffusion and the stress distribution in carbon fibre reinforced polymeric (CFRP) composites by means of experimental study and Finite Element Analysis (FEA). Samples were made from CFRP pre-preg autoclave-cured, and then immersed in fresh water and sea water at a constant 50 °C for accelerated moisture diffusion. Laminates with [0]16, [90]16, [±45]4s lay-up sequences were investigated. A multiscale 3D FEA model was developed to evaluate the interfacial stresses between polymer matrix and carbon fibre and the stress distribution in the composite laminates. The analysis revealed that both the stress distribution and stress level are time-dependent due to moisture diffusion, and the interphase between fibres and matrix plays an important role in both the process of moisture diffusion and the stress/strain transfer. The interlaminar shear stresses of the laminates induced by hygrothermal expansion exhibited a significant specimen edge effect. This is correlated with the experimental observations of the flexural failure of laminates.


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