Cyclic deformations of polypropylene with a strain-controlled program

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dc.authoridDrozdov, Aleksey -- 0000-0002-6049-5813; Dusunceli, Necmi -- 0000-0002-2841-7882
dc.contributor.authorDrozdov, Aleksey
dc.contributor.authorDüşünceli, Necmi
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-16T09:15:54Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-16T09:15:54Z
dc.date.issued2012
dc.departmentMühendislik Fakültesi
dc.description.abstractExperimental data are reported on isotactic polypropylene in uniaxial tensile cyclic tests with a strain-controlled program (oscillations between fixed minimum and maximum strains). The following characteristic features of stressstrain diagrams are observed: (i) logarithmic decay in maximum and minimum stresses with number of cycles (cyclic softening), (ii) more pronounced reduction in minimum stress than in maximum stress (cyclic strengthening), (iii) independence of rates of decrease in maximum and minimum stresses of strain rate, (iv) decrease in hysteresis energy with number of cycles. To rationalize these observations, a constitutive model is derived in cyclic viscoelasticity and viscoplasticity of semicrystalline polymers. Numerical simulation demonstrates that the model correctly describes experimental stressstrain curves and quantitatively predicts evolution of maximum and minimum stresses with number of cycles. POLYM. ENG. SCI., 2012.
dc.description.sponsorshipDanish Agency for Science, Technology and Innovation [RK 2010-2012 B4]; TUBITAK
dc.description.sponsorshipContract grant sponsor: Danish Agency for Science, Technology and Innovation; contract grant number: RK 2010-2012 B4; contract grant sponsor: TUBITAK.
dc.identifier.doi10.1002/pen.23188
dc.identifier.endpage2326en_US
dc.identifier.issn0032-3888
dc.identifier.issue11en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage2316en_US
dc.identifier.urihttps://doi.org/10.1002/pen.23188
dc.identifier.urihttps://hdl.handle.net/20.500.12451/4490
dc.identifier.volume52en_US
dc.identifier.wosWOS:000310030700008
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-Blackwell
dc.relation.ispartofPolymer Engineering & Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.titleCyclic deformations of polypropylene with a strain-controlled program
dc.typeArticle

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