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On the fatigue strength calculation of the welded shell structures from high-strength steels under low-cycle loading. Part 1: Estimation at the initial stage of fatigue failure
https://doi.org/10.22349/1994-6716-2021-107-3-184-208
Abstract
The normative methods for calculating the fatigue strength of welded joints are of limited use for low-cycle loads, as they do not take into account the possible variation in the asymmetry of the operating stress cycle, differences in the expected level of residual stresses, and the possible variety of joint geometry. Estimation procedures have been developed for shell structures made of high-strength steels subjected to external and internal pressure. They were based on experimental data on the resistance to fatigue fracture, physical modeling of individual stages of fatigue damage, and generalization of the results of numerical studies of the FEM of the stress-strain state.
About the Authors
A. V. Ilyin
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Dr Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
K. E. Sadkin
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand Sc. (Eng)
49 Shpalernaya St, 191015 St Petersburg
N. S. Zabavichev
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
49 Shpalernaya St, 191015 St Petersburg
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Review
For citations:
Ilyin A.V., Sadkin K.E., Zabavichev N.S. On the fatigue strength calculation of the welded shell structures from high-strength steels under low-cycle loading. Part 1: Estimation at the initial stage of fatigue failure. Voprosy Materialovedeniya. 2021;(3(107)):184-208. (In Russ.) https://doi.org/10.22349/1994-6716-2021-107-3-184-208
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