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dc.contributor.author
Marcadet, Stephane J.
dc.contributor.author
Mohr, Dirk
dc.date.accessioned
2023-07-24T13:55:53Z
dc.date.available
2017-06-12T10:27:55Z
dc.date.available
2023-07-24T13:55:53Z
dc.date.issued
2016-07
dc.identifier.issn
0376-9429
dc.identifier.issn
1573-2673
dc.identifier.other
10.1007/s10704-016-0130-x
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/119189
dc.identifier.doi
10.3929/ethz-b-000119189
dc.description.abstract
A new phenomenological framework for predicting ductile fracture after non-proportional loading paths is proposed, implemented into FE software and validated experimentally for a limited set of monotonic and reverse loading conditions. Assuming that ductile fracture initiation is imminent with the formation of a shear band, a shear localization criterion in terms of the elastoplastic tangent matrix is sufficient from a theoretical point of view to predict ductile fracture after proportional and non-proportional loading. As a computationally efficient alternative to analyzing the acoustic tensor, a phenomenological criterion is proposed which expresses the equivalent hardening rate at the onset of fracture as a function of the stress triaxiality and the Lode angle parameter. The mathematical form of the criterion is chosen such that it reduces to the Hosford–Coulomb criterion for proportional loading. The proposed framework implies that the plasticity model is responsible for the effect of loading history on ductile fracture. Important non-isotropic hardening features such as the Bauschinger effect, transient softening and hardening stagnation must be taken into account by the plasticity model formulation to obtain reasonable fracture predictions after non-proportional loading histories. A new comprehensive plasticity model taking the above effects into account is thus an important byproduct of this work. In addition, compression–tension and reverse-shear experiments are performed on specimens extracted from dual-phase steel sheets to validate the proposed plasticity and fracture model.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Ductile fracture
en_US
dc.subject
Localization
en_US
dc.subject
Hardening rate
en_US
dc.subject
Reverse loading
en_US
dc.subject
Reverse shear
en_US
dc.subject
Hosford-Coulomb
en_US
dc.title
Critical hardening rate model for predicting path-dependent ductile fracture
en_US
dc.type
Journal Article
dc.rights.license
In Copyright - Non-Commercial Use Permitted
dc.date.published
2016-06-29
ethz.journal.title
International Journal of Fracture
ethz.journal.volume
200
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Int J Fract
ethz.pages.start
77
en_US
ethz.pages.end
98
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
en_US
ethz.identifier.wos
ethz.identifier.nebis
000013736
ethz.publication.place
Dordrecht
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.::02622 - Institut für virtuelle Produktion / Institute of Virtual Manufacturing::09473 - Mohr, Dirk / Mohr, Dirk
en_US
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.::02622 - Institut für virtuelle Produktion / Institute of Virtual Manufacturing::09473 - Mohr, Dirk / Mohr, Dirk
ethz.date.deposited
2017-06-12T10:28:50Z
ethz.source
ECIT
ethz.identifier.importid
imp5936549c0c55f19902
ethz.ecitpid
pub:181190
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-26T06:19:08Z
ethz.rosetta.lastUpdated
2024-02-03T01:54:56Z
ethz.rosetta.versionExported
true
ethz.COinS
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