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Effects of anisotropic yield functions on prediction of forming limit diagrams of DP600 advanced high strength steel   
Yazarlar
Fahrettin Ozturk
Serkan Toros
Niğde Üniversitesi, Türkiye
Doç. Dr. Süleyman KILIÇ Doç. Dr. Süleyman KILIÇ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
In recent years, numerous researchers have reported that the predicted forming limit diagrams strongly depend on the method of determining the material parameters used in the yield functions and the corresponding the shape of the yield surface. In this study, the capability of different yield functions to predict the forming limit diagram of DP600 advanced high strength steel sheet is investigated. Additionally, the effects of determination method of the anisotropic parameters on the forming limit diagram are studied. The yield functions proposed by Hill-48, Barlat- 89, and YLD2000-2d are considered and the forming limit diagrams are constructed using the Marciniak Kuczynski model. Results reveal that predictions using different yield functions are lower than the experimental forming limits. In terms of shape and tendency, the YLD2000-2d curve is best suited for representing experimental curve.
Anahtar Kelimeler
DP600 | FLD | M-K model | Yield functions
Makale Türü Özgün Makale
Makale Alt Türü SCOPUS dergilerinde yayımlanan tam makale
Dergi Adı 11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014
Dergi ISSN 1877-7058
Dergi Tarandığı Indeksler Scopus
Makale Dili İngilizce
Basım Tarihi 01-2014
Cilt No 81
Sayı 1
Sayfalar 6 / 765
Doi Numarası 10.1016/j.proeng.2014.10.073
Makale Linki http://dx.doi.org/10.1016/j.proeng.2014.10.073