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A critical evaluation of the centre hole technique for the measurement of residual stresses
Author(s) -
BEANEY E. M.,
PROCTER E.
Publication year - 1974
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1974.tb00074.x
Subject(s) - residual stress , reliability (semiconductor) , calibration , residual , statement (logic) , stress (linguistics) , hole drilling method , materials science , computer science , structural engineering , engineering , mathematics , physics , algorithm , composite material , statistics , law , thermodynamics , power (physics) , linguistics , philosophy , political science
The principle of the centre hole technique for determination of residual stresses and its practical application are described. The sources of error are discussed individually and a clear statement is given of the maximum possible errors in uniform stress fields when applying the recommended methods. Results from calibration exercises are shown. It is concluded that the technique has good reliability and, subject to the choice of method for hole forming, will have an accuracy better than 10%. Further investigations are to be made at Berkeley Nuclear Laboratories into the methods of hole forming and the performance of the technique in stress gradients is to be studied.