Model of transient creep for a ferritic-martensitic steel based on the modified θ-projection method
- 作者: Kolotovkina A.V.1, Zborovskii V.G.2,3, Leonteva-Smirnova M.V.1
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隶属关系:
- Academician A.A. Bochvar High-Tech Research Institute of Inorganic Materials
- Lebedev Physical Institute of the Russian Academy of Sciences, Troitsk Branch
- National Research Center “Kurchatov Institute”
- 期: 卷 126, 编号 3 (2025)
- 页面: 342-353
- 栏目: ПРОЧНОСТЬ И ПЛАСТИЧНОСТЬ
- URL: https://bakhtiniada.ru/0015-3230/article/view/306441
- DOI: https://doi.org/10.31857/S0015323025030104
- EDN: https://elibrary.ru/imzoeu
- ID: 306441
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详细
The paper presents the developed model for predicting the behavior of a ferritic-martensitic steel during all creep stages. A modified θ-projection method is proposed as a solution. The main advantages of the method are abilities to model creep curves for a wide range of temperatures and stresses (which reduces the need for long-term run tests); to validate calculations by determining time to failure; to predict a steady-state creep rate. Despite the usefulness of the proposed approach, certain limitations are noted that result in modeling uncertainties. Higher accuracy and robustness can be achieved using a "mechanical equation of state equation" model of Rabotnov type.
作者简介
A. Kolotovkina
Academician A.A. Bochvar High-Tech Research Institute of Inorganic Materials
Email: AVKolotovkina@bochvar.ru
Moscow, 123098 Russia
V. Zborovskii
Lebedev Physical Institute of the Russian Academy of Sciences, Troitsk Branch; National Research Center “Kurchatov Institute”
Email: AVKolotovkina@bochvar.ru
Troitsk, Moscow, 108840 Russia; Moscow, 123182 Russia
M. Leonteva-Smirnova
Academician A.A. Bochvar High-Tech Research Institute of Inorganic Materials
编辑信件的主要联系方式.
Email: AVKolotovkina@bochvar.ru
Moscow, 123098 Russia
参考
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