Analysis of ratcheting by using different yield criteria and kinematic hardening models for uniaxial and biaxial loading

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2018

Öğrenci: MERT İŞLER

Danışman: HALUK DARENDELİLER

Özet:

Ratcheting, the accumulation of plastic strain under cyclic loading, will be investigated for uniaxial and biaxial loading in this study. The simulations of ratcheting will be carried on for different yield criteria and kinematic hardening rules. The corresponding stress-strain relations will be developed and used in the numerical analysis by implementing subroutines to a commercial finite element software. The numerical results will be compared with the experimental ones to evaluate the applicability of the constitutive equations that are obtained by using the selected yield criteria and kinematic hardening rules.