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A constitutive model for describing the tensile response of woven polyethylene terephthalate geogrids after damage

2023Journal article Open access
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dc.contributor.authorLombardi, Giovani
dc.contributor.authorPinho-Lopes, Margarida
dc.contributor.authorPaula, António Miguel
dc.contributor.authorPereira, Antonio Bastos
dc.date.accessioned2013-01-28T09:36:24Z
dc.date.available2013-01-28T09:36:24Z
dc.date.issued2023
dc.description.abstractA constitutive model was used to describe the tensile response of two woven Polyethylene Terephthalate (PET) geogrids, before and after mechanical damage. The model parameters of undamaged and damaged specimens were estimated via numerical regressions of test results. For each sample, the experimental and fitted tensile strengths were statistically compared using hypothesis tests. For each geogrid, tensile load-strain curves of damaged samples were drawn by applying scaling factors to the plot of the undamaged sample. The curve fittings resulted in high R-2 values for undamaged and damaged specimens of the geogrids. For most samples, there was no significant mean difference between the experimental and fitted tensile strength. The model allowed us to describe the load-strain curve of a geogrid from its tensile properties: & epsilon;(max), T-max and J(i). Regardless of the type of damage (in laboratory or in situ), the model was able to describe the load-strain curves of damaged samples using data from undamaged samples and scaling factors.por
dc.description.sponsorshipThis work was funded by the Foundation for Science and Technology (FCT), grant number 2020.07874.BD (doctoral scholarship), FCT/UIDB/ECI/04450/2020 (Aveiro Research Centre for Risks and Sustainability in Construction), FCT/UIDB/04708/2020 (CONSTRUCT, Instituto de I&D em Estruturas e Construções), FCT/UIDB/00481/2020, FCT/UIDP/00481/2020, and CENTRO-01-0145-FEDER-022083 (Centre for Mechanical Technology and Automation), and by the project TRANSFORM—supported by the Portuguese Resilience Plan (PRR) and European Union (NextGenerationEU).
dc.identifier.citationLombardi, Giovani; Pinho-Lopes, Margarida; Paula, António Miguel; Pereira, Antonio Bastos (2023). A constitutive model for describing the tensile response of woven polyethylene terephthalate geogrids after damage. Materials. eISSN 1996-1944. 16:15, p. 1-12por
dc.identifier.doi10.3390/ma16155384
dc.identifier.eissn1996-1944
dc.identifier.urihttp://hdl.handle.net/10198/8033
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherMDPIpor
dc.subjectGeosyntheticspor
dc.subjectConstitutive modelspor
dc.subjectDamagepor
dc.subjectStatistical analysispor
dc.titleA constitutive model for describing the tensile response of woven polyethylene terephthalate geogrids after damagepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleMaterialspor
person.familyNamePaula
person.givenNameAntónio Miguel
person.identifier.ciencia-idD115-1763-07B0
person.identifier.orcid0000-0003-4788-8644
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication0c3fd9de-f48a-4789-b77f-2a96c704621f
relation.isAuthorOfPublication.latestForDiscovery0c3fd9de-f48a-4789-b77f-2a96c704621f

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