Shear-induced changes in smooth geomembrane surface topography at different ambient temperatures

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dc.contributor.authorFrost, J. D.
dc.contributor.authorKarademir, T.
dc.date.accessioned2024-07-18T20:49:09Z
dc.date.available2024-07-18T20:49:09Z
dc.date.issued2016
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractThe shear strength of particulate material-smooth geomembrane interfaces results predominantly from ploughing and/or sliding of the particles at the interface. The relative contribution of particle sliding and ploughing for a given smooth geomembrane surface is principally a function of relative material hardness, particle angularity, and normal stress. The relative material hardness is ambient temperature dependent since the geomembrane is polymer based. When ploughing occurs at any temperature, the geomembrane surface wears, resulting in altered surface topography and different interface strength. This paper summarises the results of a study that quantified changes in the surface roughness of geomembranes as a function of ambient temperature, normal stress, and particle angularity. Surface roughness measurements were made on both virgin and post-shear smooth geomembrane specimens using a stylus profilometer to quantify the extent of wear resulting from shearing against different counterface materials at different temperatures under different normal stresses. Increased ambient temperature and particle angularity significantly increased the geomembrane surface roughness and provided quantitative insight into the wear mechanisms at granular material-smooth geomembrane interfaces.en_US
dc.description.sponsorshipGeosynthetic Institute through a GSI Fellowshipen_US
dc.description.sponsorshipThe research study reported herein was conducted in part with support from the Geosynthetic Institute through a GSI Fellowship to the second author. This support is gratefully acknowledged.en_US
dc.identifier.doi10.1680/jgein.15.00036
dc.identifier.endpage128en_US
dc.identifier.issn1072-6349
dc.identifier.issn1751-7613
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-84961579272en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage113en_US
dc.identifier.urihttps://doi.org/10.1680/jgein.15.00036
dc.identifier.urihttps://hdl.handle.net/11411/8107
dc.identifier.volume23en_US
dc.identifier.wosWOS:000373385800004en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIce Publishingen_US
dc.relation.ispartofGeosynthetics Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGeosyntheticsen_US
dc.subjectGeomembrane Wearen_US
dc.subjectInterface Shearen_US
dc.subjectParticle Angularityen_US
dc.subjectSurface Roughnessen_US
dc.subjectSurface Topography Changesen_US
dc.subjectTemperature Effectsen_US
dc.subjectInterfacesen_US
dc.subjectStrengthen_US
dc.subjectFrictionen_US
dc.titleShear-induced changes in smooth geomembrane surface topography at different ambient temperatures
dc.typeArticle

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