Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7695
DC FieldValueLanguage
dc.contributor.authorConstantinides, Georgiosen
dc.contributor.authorVandamme, Matthieuen
dc.contributor.authorTweedie, Catherine A.en
dc.contributor.authorUlm, Franz Josef-
dc.contributor.authorVliet, Krystyn J Van-
dc.contributor.otherΚωνσταντινίδης, Γιώργος-
dc.date.accessioned2013-03-06T16:34:06Zen
dc.date.accessioned2013-05-17T10:30:39Z-
dc.date.accessioned2015-12-09T12:08:16Z-
dc.date.available2013-03-06T16:34:06Zen
dc.date.available2013-05-17T10:30:39Z-
dc.date.available2015-12-09T12:08:16Z-
dc.date.issued2012en
dc.identifier.citationJournal of Materials Research, 2012, Volume 27, Issue 1, Pages 302-312en
dc.identifier.issn08842914en
dc.identifier.urihttp://ktisis.cut.ac.cy/handle/10488/7695en
dc.description.abstractHere we quantify the time-dependent mechanical properties of a linear viscoelastoplastic material under contact loading. For contact load relaxation, we showed that the relaxation modulus can be measured independently of concurrent plasticity exhibited during the loading phase. For indentation creep, we showed that the rate of change of the contact creep compliance L̇(t) can be measured independently of any plastic deformation exhibited during loading through L̇(t) = 2a(t)ḣ(t)/P max, where a(t) is the contact radius, h(t) is the displacement of the contact probe, and P max is the constant applied load during the creep phase. These analytical relations were compared with numerical simulations of conical indentation creep for a viscoelastoplastic material and validated against sharp indentation creep experiments conducted on polystyrene. The derived relations enable extraction of viscoelastic material characteristics, even if sharp probes confer concurrent plasticity, applicable for a general axisymmetric contact probe geometry and a general time-independent plasticity.en
dc.formatpdfen
dc.language.isoenen
dc.publisherCambridge Universityen
dc.rights© 2011 Materials Research Societyen
dc.subjectPlasticityen
dc.subjectPolymersen
dc.subjectElastic analysis (Engineering)en
dc.titleQuantifying plasticity-independent creep compliance and relaxation of viscoelastoplastic materials under contact loadingen
dc.typeArticleen
dc.collaborationMassachusetts Institute of Technology-
dc.collaborationUniversite Paris-
dc.collaborationCyprus University of Technology-
dc.subject.categoryMaterials Engineering-
dc.journalsSubscription Journal-
dc.reviewpeer reviewed-
dc.countryUnited States-
dc.countryFrance-
dc.countryCyprus-
dc.subject.fieldEngineering and Technology-
dc.identifier.doi10.1557/jmr.2011.302en
dc.dept.handle123456789/141en
item.grantfulltextnone-
item.languageiso639-1en-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.orcid0000-0003-1979-5176-
crisitem.author.parentorgFaculty of Engineering and Technology-
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