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Determination of surface residual stresses in brittle materials by Hertzian indentation: Theory and experiment

Abstract:

Hertzian indentation has been used to determine the surface residual stress levels in brittle materials. In this method, a hard sphere is pressed into the surface of the material: at a critical load a preexisting surface-breaking crack in the neighborhood of the contact will propagate. There is a threshold load below which no such crack, of whatever size, can be propagated. The presence of a residual stress in the surface will lead to a shift in this threshold load. The effects of residual st...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Publisher:
American Ceramic Soc
Journal:
JOURNAL OF THE AMERICAN CERAMIC SOCIETY More from this journal
Volume:
82
Issue:
7
Pages:
1809-1816
Publication date:
1999-07-01
DOI:
EISSN:
1551-2916
ISSN:
0002-7820
Language:
English
Pubs id:
pubs:26188
UUID:
uuid:90e4dbce-f9b0-49e3-846f-abdfbf784959
Local pid:
pubs:26188
Source identifiers:
26188
Deposit date:
2012-12-19

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