Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1007515
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dc.contributor.authorGaspar, F.pt_BR
dc.contributor.authorCruz, H.pt_BR
dc.contributor.authorGomes, A.pt_BR
dc.contributor.editorMichael C. Fordept_BR
dc.date.accessioned2015-09-03T15:19:46Zpt_BR
dc.date.accessioned2017-04-13T09:12:10Z-
dc.date.available2015-09-03T15:19:46Zpt_BR
dc.date.available2017-04-13T09:12:10Z-
dc.date.issued2015-08-04pt_BR
dc.identifier.issn0950-0618pt_BR
dc.identifier.otherdoi:10.1016/j.conbuildmat.2015.08.011pt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1007515-
dc.description.abstractDelamination at the glue lines is a key factor to take into account when assessing glued laminated timber members in service. In order to gain a more objective and wide knowledge about the importance of delamination in relation to its type and extension, a numerical study was developed. Finite element modeling (FEM) was used to evaluate the influence of delamination – near the surface, on the vertical faces and ends – on the mechanic performance of straight glued laminated timber beams. The FEM was validated by comparing stresses and deformations obtained with the model and with the application of the beam theory, showing satisfactory results. Results show that when delamination is non-symmetric regarding the member’s cross section, it can cause the member’s lateral instability, thus increasing its stresses and deformations. Delamination is not a problem when it occurs in members or member areas with low shear stresses, particularly when it is symmetric and does not reach the whole width of the beam. The stresses corresponding to the bending or deformation limit-states get near the elastic limit only for very important delamination. Moreover, delamination depth higher than 60% of the cross section width may be regarded as a turn point beyond which the structural integrity may be at risk.pt_BR
dc.language.isoengpt_BR
dc.publisherElsevier Ltd.pt_BR
dc.rightsopenAccesspt_BR
dc.subjectGlued laminated timberpt_BR
dc.subjectDelaminationpt_BR
dc.subjectFinite element modelspt_BR
dc.titleModeling the influence of delamination on the mechanical performance of straight glued laminated timber beamspt_BR
dc.typearticlept_BR
dc.description.pages447-455pppt_BR
dc.description.commentsThe authors wish to thank Fundação para a Ciência e a Tecnologia (Portuguese Foundation for Science and Technology), for the PhD grant (number SFRH/BD/30310/2006) given to Florindo Gaspar.pt_BR
dc.description.volume98pt_BR
dc.description.sectorDE/NCEpt_BR
dc.description.magazineConstruction and building materialspt_BR
dc.contributor.peer-reviewedSIMpt_BR
dc.contributor.academicresearchersSIMpt_BR
Appears in Collections:DE/NCE - Comunicações a congressos e artigos de revista

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