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Dislocation model of localized plastic deformation initiated with a flat punch

Abstract:

We consider a classical contact mechanics problem, namely, the indentation of a ductile half-plane by a rigid flat punch (in plane strain), a revisit it using the dislocation mechanics approach. This dislocation nucleation and dislocation interaction beneath the indenter are examined. The threshold load for dislocation nucleation and the dislocation emission angle are obtained in analytical form. Moreover, based on the consideration of dislocation interaction, we explore the mechanism of cont...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
"University of Aberdeen", "Xi'an Jiaotong University, China"
Department:
S&V Lab,Department of Engineering Mechanics
Role:
Author
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Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Engineering Science
Role:
Author
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Institution:
University of Aberdeen
Department:
Centre for Applied Dynamics Research
Role:
Author
National Basic Research Program of China More from this funder
National 111 Project of China More from this funder
Publisher:
Elsevier Publisher's website
Journal:
International Journal of Solids and Structures Journal website
Volume:
47
Issue:
7-8
Pages:
1082-1089
Publication date:
2010-04-05
DOI:
ISSN:
0020-7683
URN:
uuid:6136163e-2cb2-4711-b817-2fae5b4acb9f
Local pid:
ora:3714

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