Detailed Investigation of Forming Limit Determination Standards for Aluminum Alloys

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dc.authorid0000-0001-9517-7957
dc.authorid0000-0001-9692-5777
dc.contributor.authorDilmec, Murat
dc.contributor.authorHalkaci, H. Selcuk
dc.contributor.authorOzturk, Fahrettin
dc.contributor.authorTurkoz, Mevlut
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractIn this study, experimental studies were conducted to evaluate the differences between the ASTM E2218-02 and ISO 12004-2 standards that are used for construction of the forming limit curve (FLC) and that made various assumptions, which create dissimilar FLCs for the same material. The comparison was made for two materials which have moderate brittle and ductile characteristics, AA2024-T4 and AA5754-O alloys, respectively. The effects of a specimen's geometry, lubrication condition, and determination methods of limit strains on FLCs were considered and compared. Because the same strain evaluation method should be used for the standards, so as to be able to investigate the effect of only standards, a simple method in the computer grid analysis system was used. To test the validity and the reliability of the method, limit strains on the same specimens were also determined with using a real-time measurement method for the ISO experiments, and the results reveal that the method is reliable. Failure mechanisms were inspected for further investigation. The Nakajima specimens formed with the two standards showed different failure mechanisms. Finally, conducting the case studies, it was concluded that ISO 12004-2 yields more reliable and reproducible results than the ASTM standard.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [108M516]; Research Project Unit (BAP) of Selcuk University [09101005]
dc.description.sponsorshipThis work is supported by The Scientific and Technological Research Council of Turkey (TUBITAK), Project No. 108M516, Project Title: "Adding Drawbead to the Blank Holder for Enhancing Formability of Aluminum Alloy Sheets with Hydroforming Process." This work is also supported by the Research Project Unit (BAP) of Selcuk University under Project No. 09101005. TUBITAK, Selcuk University, and Metal Forming Laboratory in Nigde University, and Metal Forming Center of Excellence in Atilim University are profoundly acknowledged.
dc.identifier.doi10.1520/JTE104356
dc.identifier.endpage21
dc.identifier.issn0090-3973
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84875425474
dc.identifier.scopusqualityQ3
dc.identifier.startpage10
dc.identifier.urihttps://dx.doi.org/10.1520/JTE104356
dc.identifier.urihttps://hdl.handle.net/11480/4489
dc.identifier.volume41
dc.identifier.wosWOS:000315009100002
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherAMER SOC TESTING MATERIALS
dc.relation.ispartofJOURNAL OF TESTING AND EVALUATION
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectASTM E2218-02
dc.subjectISO 12004-2
dc.subjectforming limit curve
dc.subjectfailure
dc.titleDetailed Investigation of Forming Limit Determination Standards for Aluminum Alloys
dc.typeArticle

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