A Plastic Boundary Layer in Wedge Indentation of Aluminum
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- Sugihara Tatsuya
- Department of Mechanical Engineering, Osaka University
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- Udupa Anirudh
- School of Industrial Engineering Purdue University
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- Viswanathan Koushik
- Department of Mechanical Engineering, Indian Institute of Science
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Abstract
<p>We study plastic flow in the vicinity of an indenter-material interface in wedge indentation of aluminum using high speed in situ imaging and particle image velocimetry (PIV) analysis. Displacement and strain fields in the indentation zone are obtained at high-resolution for different indenter angles and two lubrication conditions. These fields can be used to demarcate essential features of the material flow phenomena. The deformed layers close to the indenter wall fit a classical boundary layer profile in the framework of a Bingham-solid. Equivalent Bingham viscosities and boundary layer scaling relations are obtained. The viscosity values appear to reflect the nature of the friction interaction at the indenter-material interface and can potentially be used as a discriminating parameter for evaluating contributions to deformation and dissipation arising from interface friction.</p>
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 60 (8), 1436-1441, 2019-07-01
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282763131047936
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- NII Article ID
- 130007683594
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 029819167
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed
