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Parameter determination and calibration of the combined plasticity model through inverse analysis for cold forging simulation of 7075-T6 aluminum alloy      
Yazarlar
İlyas Kacar
Niğde Ömer Halisdemir Üniversitesi, Türkiye
Doç. Dr. Süleyman KILIÇ Doç. Dr. Süleyman KILIÇ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
In this study, plasticity models have been developed to be used in cold forging simulations of AA7075-T6 alloy which is widely used in aviation industry. In addition, the coefficients of the obtained models have been calibrated using genetic algorithm optimization method. As the hardening rule in models; bilinear isotropic is combined with Chaboche's nonlinear kinematic hardening rule (three-termed). Plasticity models have been obtained by using the associated flow rule and Hill48 yield criterion in addition to the hardening rules. Experimental stress values have been compared with those obtained from the models. As a result, the most suitable hardening model for monotonic/cyclic loading deformation conditions is presented and the effects of the model parameters on the simulation results are shown.
Anahtar Kelimeler
Chaboche kinematic hardening model | bilinear isotropic hardening model | genetic algorithm | AA7075-T6 | cold forging
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY
Dergi ISSN 1300-1884
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili Türkçe
Basım Tarihi 01-2022
Cilt No 37
Sayı 4
Sayfalar 14 / 2104
Doi Numarası 10.17341/gazimmfd.654200
Makale Linki http://dx.doi.org/10.17341/gazimmfd.654200