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The Paton Welding Journal 2015

The Paton Welding Journal ¹06 2015

DOI of Article
https://doi.org/10.15407/tpwj2015.06.30
2015 ¹06 (29) 2015 ¹06 (31)


TPWJ, 2015, #5-6, 134-139 pages

 
Calculation of fatigue life of cylindrical parts at multilayer surfacing and service cyclic thermomechanical loading
 
Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                      0957-798X (print)
Issue                       ¹ 5/6, 2015 (May/June)
Pages                      134-139
 
 
Authors
I.K. Senchenkov1, O.P. Chervinko1 And I.A. Ryabtsev2
1S.P. Timoshenko Institute of Mechanics, NASU.3 Nesterov Str., 03057, Kiev, Ukraine. E-mail:ang@inmex.kiev.ua
2E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
 
 
Abstract
Procedure was developed for calculation of residual stress-strain and microstructural state of cylindrical part at multilayer surfacing aver lateral surface as well as calculation of its thermomechanical state and fatigue life in further service cyclic thermomechanical loading. The procedure was developed in scope of common mathematical model based on theory of growing bodies, current model of viscoplastic non-isothermic flow, thermokinetic diagrams of decay of austenite, deposited and base metals considering residual stress-strain and structural state in single- and multilayer surfacing of parts by layers of different chemical composition, structure and thickness. It allows evaluating the fatigue life of deposited parts depending on value and relationship of service cyclic thermal and mechanical loads and on consumables applied for sublayer and wear-resistant layer. 21 Ref., 7 Figures.
 
 
Keywords: multilayer surfacing, numerical simulation, residual surfacing stresses, cyclic thermomechanical loading, fatigue life
 
 
Received:                20.04.15
Published:               28.07.15
 
 
References
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5. Senchenkov, I.K. (2005) Thermomechanical models of growing cylindrical bodies from physically nonlinear materials. Prikl. Mekhanika, 41(9), 118-126.
6. Senchenkov, I.K., Chervinko, O.P., Banyas, M.V. (2013) Modeling of thermomechanical process in growing viscoplastic bodies with accounting of microstructural transformation: Encyclopedia of Thermal Stresses. Springer Ref., Vol. 6, 3147-3157.
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11. Senchenkov, I.K., Chervinko, O.P., Dolya, E.V. (2014) Modeling of residual stress-strain and micro-structural state of cylinder in growing along lateral surface with melted metal layers. Teoriya i Prikl. Mekhanika, Issue 8(54), 34-44.
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