State Equations of Unsteady Creep under Complex Loading

I. A. Volkov; L. A. Igumnov; D. A. Kazakov; D. N. Shishulin; I. S. Tarasov

doi:10.1134/S0021894418030203

State Equations of Unsteady Creep under Complex Loading

Authors: Volkov I.A.¹, Igumnov L.A.², Kazakov D.A.², Shishulin D.N.³, Tarasov I.S.¹
Affiliations:
1. Volga State University of Water Transport
2. Institute of Mechanics
3. Alekseev Nizhny Novgorod State Technical University
Issue: Vol 59, No 3 (2018)
Pages: 551-560
Section: Article
URL: https://journals.rcsi.science/0021-8944/article/view/161154
DOI: https://doi.org/10.1134/S0021894418030203
ID: 161154

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Abstract

A mathematical model describing the unsteady creep of metals under complex loading is proposed. The results of numerical simulation of creep of St.304 steel in complex regimes of block multiaxial cyclic deformation are given. The numerical calculation results obtained are compared with the data of full-scale experiments. Creep is simulated in complex deformation processes accompanied by the rotation of main regions of stress, strain, and creep strain tensors.