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Modelling plastic zones and the brittle-ductile transition

Abstract:

Many crystalline solids fail by cleavage at low temperatures and by plastic processes at high temperatures. In the transition region, cleavage failure occurs at stresses increasing with increasing temperature, reflecting a decrease in yield stress and a consequent increase of plasticity around the crack tip. Crack tip plasticity blunts the crack and shields it through the compressive stresses in the plastic zone. This competition between cleavage and plastic flow can be modelled in terms of t...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
Journal:
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume:
355
Issue:
1731
Pages:
1991-2001
Publication date:
1997-10-15
ISSN:
1364-503X
URN:
uuid:84923fb9-7213-4afd-86de-fa3abbf0919a
Source identifiers:
3146
Local pid:
pubs:3146
Language:
English

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