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A physically based model for bcc materials including non-Schmid effects and its application to single crystals of α-iron at different model scales

Abstract:

A dislocation density based model is developed to govern physics of complex mechanical behavior of bcc materials. Non-Schmid effects are incorporated into a novel dislocation density based model by using three-term projection operators. The model is used to explain dependence of mechanical response to crystal orientation, temperature, strain-rate and as well as tension-compression asymmetry. Simulations at different scales that include; a material point, a single finite element and a finite e...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1361-651X/abffe3

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
ORCID:
0000-0003-4657-298X
Publisher:
IOP Publishing
Journal:
Modelling and Simulation in Materials Science and Engineering More from this journal
Volume:
29
Issue:
5
Article number:
55016
Publication date:
2021-06-07
Acceptance date:
2021-05-11
DOI:
EISSN:
1361-651X
ISSN:
0965-0393
Language:
English
Keywords:
Pubs id:
1318220
Local pid:
pubs:1318220
Deposit date:
2023-05-10

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