Two-phase model in viscoelasticity and viscoplasticity of semicrystalline polymers

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dc.contributor.authorDrozdov, A.D.
dc.contributor.authorDüşünceli, Necmi
dc.date.accessioned2025-10-03T11:42:12Z
dc.date.available2025-10-03T11:42:12Z
dc.date.issued2012
dc.departmentMühendislik Fakültesi
dc.description.abstractObservations are reported on isotactic polypropylene in tensile relaxation tests and in loading-unloading tests followed by relaxation after retraction at temperatures ranging from room temperatures up to 100°C. A two-phase constitutive model is developed for the mechanical response of semicrystalline polymers where crystalline and amorphous phases are treated as viscoelastoplastic continua with different laws of plastic flow. Adjustable parameters in the stress-strain relations are found by fitting the observations. Ability of the model to describe characteristic features of the viscoelastic and viscoplastic behavior of polypropylene at various temperatures is confirmed by numerical simulation and comparison of its results with experimental data in additional tests.
dc.identifier.doi10.1142/S2047684112500157
dc.identifier.issn20476841
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85014882832
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1142/S2047684112500157
dc.identifier.urihttps://hdl.handle.net/20.500.12451/14587
dc.identifier.volume1
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWorld Scientific
dc.relation.ispartofInternational Journal of Computational Materials Science and Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectConstitutive Modeling
dc.subjectCyclic Viscoplasticity
dc.subjectFinite Deformations
dc.subjectIsotactic Polypropylene
dc.subjectLow Density Polyethylene
dc.titleTwo-phase model in viscoelasticity and viscoplasticity of semicrystalline polymers
dc.typeArticle

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