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Characterization of the Mechanical Performance in Compression Perpendicular to the Grain of Insect-Deteriorated Timber

2020-01Journal article Open access
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dc.contributor.authorVerbist, Maxime
dc.contributor.authorBranco, Jorge M.
dc.contributor.authorNunes, Lina
dc.date.accessioned2021-03-24T17:55:44Z
dc.date.available2021-03-24T17:55:44Z
dc.date.issued2020-01
dc.description.abstractAmong biological agents, insect attacks may cause severe degradation of timber structures in the service life of buildings which leads to lower mechanical performance and, thus, maintenance problems over time. Additionally, compression perpendicular to the grain always features a weak spot with respect to the long-term mechanical performance of timber members and joints. In the present work, the respective strength and elastic modulus were thus investigated for insect deteriorated wood. Following a standardized geometry, small samples degraded by anobiids were extracted from beams made of sweet chestnut wood (Castanea sativa Mill.) that were removed from service. Visual assessment of the external wood surfaces was then performed to identify areas infested by insects. Afterwards, destructive monotonic compression tests were carried out perpendicularly to the grain on the damaged area to determine the loss of compressive strength and elastic modulus. The experimental results showed that the loss of compressive strength and elastic modulus might be linearly correlated to the wood density loss for small samples infested by insects. Nonetheless, future work should focus on determining accurately the density loss in the insect-deteriorated part through non- or semi-destructive tests, in order to establish stronger relationships with the mechanical properties loss investigated.en
dc.description.sponsorshipThis work was financed by the European Regional Development Fund (FEDER) through the Competitively Factors Operational Programme (COMPETE) and by national funds through the Foundation for Science and Technology (FCT) within the scope of research projects INVISIBLE WOODS PTDC/EPH-PAT/2401/2014 and PROTIMBER PTDC/ECM-EST/1072/2014, respectively, and the PhD Scholarships SFRH/BD/128580/2017.en
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVerbist, M., Branco, J.M. & Nunes, L. (2020). Characterization of the mechanical performance in compression perpendicular to the grain of insect-deteriorated timber. “Buildings”, 10(1),1-14. DOI:10.3390/buildings10010014.en
dc.identifier.doi10.3390/buildings10010014pt_PT
dc.identifier.issn2075-5309
dc.identifier.urihttp://hdl.handle.net/1822/64316
dc.identifier.urihttp://hdl.handle.net/10400.3/5815
dc.identifier.wos000514573400011
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationProbabilistic Assessment of Existing Timber Structures
dc.relationMechanical Behaviour of Traditional Timber Carpentry Connections - Step Joints Design and Damage Assessment
dc.relation.publisherversionhttps://www.mdpi.com/2075-5309/10/1/14pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTimberen
dc.subjectInsect Wood Deteriorationen
dc.subjectCompressionen
dc.subjectDestructive Testsen
dc.titleCharacterization of the Mechanical Performance in Compression Perpendicular to the Grain of Insect-Deteriorated Timberen
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleProbabilistic Assessment of Existing Timber Structures
oaire.awardTitleMechanical Behaviour of Traditional Timber Carpentry Connections - Step Joints Design and Damage Assessment
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FEPH-PAT%2F2401%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FECM-EST%2F1072%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F128580%2F2017/PT
oaire.citation.conferencePlaceSwitzerlanden
oaire.citation.endPage14pt_PT
oaire.citation.issue(1)pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleBuildingsen
oaire.citation.volume10pt_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream3599-PPCDT
oaire.fundingStreamPOR_NORTE
person.familyNameRibeiro Nunes
person.givenNameLina Maria
person.identifierA-7169-2013
person.identifier.ciencia-id2515-2AE7-A765
person.identifier.orcid0000-0001-6849-3241
person.identifier.scopus-author-id23006201100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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