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Mechanical behaviour of a bainitic high strength roller bearing steel
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.), Solid Mechanics (Div.).
2010 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH , 2010. , 11 p.
Series
Trita-HFL. Report / Royal Institute of Technology, Solid Mechanics, ISSN 1654-1472 ; 0496
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-25423OAI: oai:DiVA.org:kth-25423DiVA: diva2:358187
Presentation
2010-11-19, Room F2, Lindstedtsvägen 26, KTH, Stockholm, 10:15 (English)
Opponent
Supervisors
Note

QC 20101110

Available from: 2010-11-10 Created: 2010-10-21 Last updated: 2013-01-15Bibliographically approved
List of papers
1. Elastic-plastic characterization of a high strength bainitic roller bearing steel-experiments and modelling
Open this publication in new window or tab >>Elastic-plastic characterization of a high strength bainitic roller bearing steel-experiments and modelling
2010 (English)In: International Journal of Mechanical Sciences, ISSN 0020-7403, E-ISSN 1879-2162, Vol. 52, no 10, 1254-1268 p.Article in journal (Refereed) Published
Abstract [en]

Monotonic and cyclic deformations were studied for a high strength bainitic roller bearing steel. The temperature of 75 °C corresponded to normal roller bearing conditions. The materials showed hydrostatic influence on yielding, but no or marginal influence of plastic deformation on density change. Therefore, a linear elastic constitutive model with pressure dependent yielding, non-associated flow rule, combined non-linear kinematic and isotropic hardening was necessary to characterize the cyclic behaviour. A stepwise process is detailed for determining the material parameters of the pressure dependent model, where particular attention was placed on the hardening parameters. One set of parameters was sufficient to describe all tested load ranges including compressive ratchetting. Some comparative tests were performed at room temperature, 150 °C and on martensitic specimens at 75 °C. The temperature influence was limited to the isotropic hardening parameters.

Keyword
Cyclic loading, High strength steels, Non-associated flow rule, Plasticity, Strength differential effect, Comparative tests, Cyclic behaviour, Cyclic deformations, Cyclic loadings, Density change, Elastic-Plastic, Hardening parameters, High strength, Isotropic hardenings, Linear elastic, Load range, Material parameter, Non-linear, Pressure dependent, Ratchetting, Roller bearing steel, Room temperature, Strength-differential effects, Temperature influence, Bainite, Bearings (structural), Constitutive models, Cyclic loads, Deformation, Hardening, Roller bearings, Rollers (machine components), High strength steel
National Category
Applied Mechanics
Identifiers
urn:nbn:se:kth:diva-25967 (URN)10.1016/j.ijmecsci.2010.06.001 (DOI)000281275700002 ()2-s2.0-77955558210 (Scopus ID)
Note

QC 20150626

Available from: 2010-11-08 Created: 2010-11-08 Last updated: 2017-12-12Bibliographically approved
2. Non-linear elastic characterization of a high strength bainitic rollerbearing steel
Open this publication in new window or tab >>Non-linear elastic characterization of a high strength bainitic rollerbearing steel
2010 (English)Report (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2010
Series
Report, KTH Solid Mechanics, 495
Identifiers
urn:nbn:se:kth:diva-26043 (URN)
Note
QC 20101110Available from: 2010-11-10 Created: 2010-11-10 Last updated: 2010-11-10Bibliographically approved

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Linares Arregui, Irene
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Citation style
  • apa
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