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dc.contributor.author
Li, X.
dc.contributor.author
Holdsworth, Stuart R.
dc.contributor.author
Mazza, Edoardo
dc.contributor.author
Hosseini, Ehsan
dc.date.accessioned
2020-10-15T13:29:04Z
dc.date.available
2020-10-15T02:51:00Z
dc.date.available
2020-10-15T13:29:04Z
dc.date.issued
2021-01-15
dc.identifier.issn
0020-7403
dc.identifier.other
10.1016/j.ijmecsci.2020.106044
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/446035
dc.identifier.doi
10.3929/ethz-b-000446035
dc.description.abstract
An elastic-viscoplastic constitutive material model is developed for the representation of the creep response of a 10%Cr steel under cyclic loading conditions. It has been shown that the model is able to describe primary creep regeneration (PCR), i.e. the incidence of a period of high creep strain rate following a stress reversal. The developed model is a variant of the well-known Chaboche viscoplastic constitutive model, and employs a bi-term power-law equation to represent the stress-regime dependence of the viscoplastic strain rate response. Back stress and drag stress are used to describe the kinematic and isotropic hardening/softening behaviour of the material, respectively. The evolutions of back stress and drag stress consider contributions from strain hardening, dynamic softening, static recovery and cyclic hardening/softening. The effectiveness of the developed model for describing the sensitivity of the PCR behaviour to different loading parameters (e.g. reverse-loading magnitude and duration) and to represent the effect of PCR activation on the overall strain accumulation behaviour of the material is discussed. Furthermore, the predictive capability of the model is demonstrated for describing the response of the material during two independent benchmark tests; a stress-varying creep and a low-cycle fatigue experiments.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Viscoplastic constitutive model
en_US
dc.subject
Primary creep regeneration
en_US
dc.subject
Chaboche model
en_US
dc.subject
Stress-varying creep loading
en_US
dc.subject
10%Cr steel
en_US
dc.title
The investigation of primary creep regeneration for 10%Cr martensitic steel: Unified constitutive modelling
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-08-24
ethz.journal.title
International Journal of Mechanical Sciences
ethz.journal.volume
190
en_US
ethz.journal.abbreviated
Int. J. Mech. Sci.
ethz.pages.start
106044
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02618 - Institut für Mechanische Systeme / Institute of Mechanical Systems::03605 - Mazza, Edoardo / Mazza, Edoardo
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02618 - Institut für Mechanische Systeme / Institute of Mechanical Systems::03605 - Mazza, Edoardo / Mazza, Edoardo
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02618 - Institut für Mechanische Systeme / Institute of Mechanical Systems::03605 - Mazza, Edoardo / Mazza, Edoardo
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02618 - Institut für Mechanische Systeme / Institute of Mechanical Systems::03605 - Mazza, Edoardo / Mazza, Edoardo
ethz.date.deposited
2020-10-15T02:51:05Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-10-15T13:29:18Z
ethz.rosetta.lastUpdated
2022-03-29T03:32:16Z
ethz.rosetta.versionExported
true
ethz.COinS
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