Mechanical characterization of auxetic stainless steel thin sheets with reentrant structure

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dc.authorid0000-0003-3350-1509en_US
dc.contributor.authorLekesiz, Hüseyin
dc.contributor.authorBhullar, Sukhwinder Kaur
dc.contributor.authorKaraca, A. A.
dc.contributor.authorJun, M. B. G.
dc.date.accessioned2021-03-20T20:13:46Z
dc.date.available2021-03-20T20:13:46Z
dc.date.issued2017
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractSmart materials in auxetic form present a great potential for various medical applications due to their unique deformation mechanisms along with durable infrastructure. Both analytical and finite element (FE) models are extensively used in literature to characterize mechanical response of auxetic structures but these structures are mostly thick enough to be considered as bulk material and 3D inherently. Auxetic plates in very thin form, a. e. foil, may bring numerous advantages such as very light design and better biodegradability when needed. However, there is a gap in literature on mechanical characterization of auxetic thin plates. In this study, structural analysis of very thin auxetic plates under uniaxial loading is investigated using both FE method and experimental method. 25 mu m thick stainless steel (316L) plates are fabricated with reentrant texture for three different unit cell dimensions and tested under uniaxial loading using universal testing machine. 25 and 50 mu m thick sheets with same cell dimensions were analyzed using implicit transient FE model including strain hardening and failure behaviors. FE results cover all the deformation schemes seen in actual tests and total deformation level matches with test results. Effect of plate thickness and cell geometry on auxetic behavior is discussed in detail using FE results. Finally, based on FE analysis results, an optimum geometry for prolonged auxetic behavior, high flexibility and high durability is suggested for future potential applications.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [214M377]en_US
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK), Grant No.: 214M377.en_US
dc.identifier.doi10.1088/1361-665X/aa73a4en_US
dc.identifier.issn0964-1726
dc.identifier.issn1361-665X
dc.identifier.issue8en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttp://doi.org/10.1088/1361-665X/aa73a4
dc.identifier.urihttps://hdl.handle.net/20.500.12885/935
dc.identifier.volume26en_US
dc.identifier.wosWOS:000405474800001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorLekesiz, Hüseyin
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofSmart Materials And Structuresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectauxetic materialsen_US
dc.subjectthin platesen_US
dc.subjectbiomaterialsen_US
dc.subjectmechanical behavioren_US
dc.subjectfinite element methoden_US
dc.subjecttransient analysisen_US
dc.titleMechanical characterization of auxetic stainless steel thin sheets with reentrant structureen_US
dc.typeArticleen_US

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