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dc.contributor.authorO'Ceallaigh, Conan
dc.contributor.authorSikora, Karol
dc.contributor.authorMcPolin, Daniel
dc.contributor.authorHarte, Annette M.
dc.identifier.citationO'Ceallaigh, Conan, Sikora, Karol, McPolin, Daniel, & Harte, Annette M. (2020). Modelling the hygro-mechanical creep behaviour of FRP reinforced timber elements. Construction and Building Materials, 259, DOI:10.1016/j.conbuildmat.2020.119899en_IE
dc.description.abstractA fully coupled moisture-displacement finite element model has been developed to predict the viscoelastic, mechano-sorptive and swelling/shrinkage behaviour of FRP reinforced timber elements when stressed under long-term load and simultaneously subjected to changes in relative humidity. A DFLUX subroutine, to describe the changes in relative humidity with time, and a UMAT subroutine, implemented to describe the viscoelastic, mechano-sorptive and swelling/shrinkage behaviour, are presented. Additionally, an irrecoverable mechano-sorptive component is presented. This additional irrecoverable component occurs when the timber moisture content increases to a moisture content above levels previously attained. The model is found to be in agreement with experimentally determined deflection and strain results on both unreinforced and FRP reinforced beams subjected to constant and variable climates.en_IE
dc.description.sponsorshipThis work has been carried out as part of the project entitled ‘Innovation in Irish timber Usage’ (project ref. 11/C/207) funded by the Department of Agriculture, Food and the Marine of the Republic of Ireland under the FIRM/RSF/COFORD scheme. The authors would also like to thank ECC Ltd. (Earrai Coillte Chonnacht Teoranta) for supplying all the timber used in this project. The contribution of the technical staff of the College of Engineering and Informatics, NUIG, in particular, Peter Fahy, Colm Walsh and Gerard Hynes, is acknowledged.en_IE
dc.relation.ispartofConstruction and Building Materialsen
dc.subjectBasalt fibreen_IE
dc.subjectFinite element analysisen_IE
dc.subjectMechano-sorptive creepen_IE
dc.subjectReinforced timberen_IE
dc.subjectSitka spruceen_IE
dc.subjectVariable climateen_IE
dc.subjectViscoelastic creepen_IE
dc.titleModelling the hygro-mechanical creep behaviour of FRP reinforced timber elementsen_IE
dc.contributor.funderDepartment of Agriculture, Food and the Marine, Irelanden_IE
dc.local.contactAnnette M. Harte, Civil Engineering, Alice Perry Engineering Building, Nui Galway. 2732 Email:

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