Model of the Damaged Medium for the Assessment of Resource Characteristics of Structural Alloys for Degradation Mechanisms that Combine Fatigue and Creep of Material

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Abstract:

A mathematical model of damage accumulation processes in structural steels is developed. This model considers degradation mechanisms that combine fatigue and creep of the material. The processes of viscoplastic deformation and damage accumulation in 08Х18Н10Т and 12Х18Н9 structural steels are numerically studied. The numerical results are compared with the data from full-scale experiments. The reliability of chosen defining equations describing combined effect of fatigue and creep mechanisms is confirmed.

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Solid State Phenomena (Volume 258)

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194-197

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December 2016

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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