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Residual elastic strains in autofrettaged tubes: Variational analysis by the eigenstrain finite element method

Abstract:

Autofrettage is a treatment process that uses plastic deformation to create a state of permanent residual stress within thick-walled tubes by pressurizing them beyond the elastic limit. The present paper presents a novel analytical approach to the interpretation of residual elastic strain measurements within slices extracted from autofrettaged tubes. The central postulate of the approach presented here is that the observed residual stress and residual elastic strains are secondary parameters,...

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Publication status:
Published

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Publisher copy:
10.1115/1.2711222

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Regino, GM More by this author
Journal:
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
Volume:
74
Issue:
4
Pages:
717-722
Publication date:
2007-07-05
DOI:
ISSN:
0021-8936
URN:
uuid:f815defd-e8e2-4f1d-af08-8f833048b081
Source identifiers:
63495
Local pid:
pubs:63495
Language:
English

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