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Discrete dislocation plasticity HELPs understand hydrogen effects in bcc materials

Abstract:

In an attempt to bridge the gap between atomistic and continuum plasticity simulations of hydrogen in iron, we present three dimensional discrete dislocation plasticity simulations incorporating the hydrogen elastic stress and a hydrogen dependent dislocation mobility law. The hydrogen induced stress is incorporated following the formulation derived by Gu and El-Awady (2018) which here we extend to a finite boundary value problem, a microcantilever beam, via the superposition principle. The h...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1016/j.jmps.2018.08.020

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author
ORCID:
0000-0001-6725-9373
Publisher:
Elsevier Publisher's website
Journal:
Journal of the Mechanics and Physics of Solids Journal website
Volume:
123
Pages:
41-60
Publication date:
2018-08-28
Acceptance date:
2018-08-27
DOI:
ISSN:
0022-5096
Pubs id:
pubs:891155
URN:
uri:c529cdbf-214c-4549-9b44-1e783b11a93b
UUID:
uuid:c529cdbf-214c-4549-9b44-1e783b11a93b
Local pid:
pubs:891155

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