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Evaluating Uncertainty in Residual Stress Measured Using the Deep‐Hole Drilling Technique
Author(s) -
Goudar D. M.,
Truman C. E.,
Smith D. J.
Publication year - 2011
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.1475-1305.2009.00620.x
Subject(s) - residual stress , deep hole drilling , welding , aluminium , calibration , residual , drilling , materials science , stress (linguistics) , structural engineering , metallurgy , engineering , computer science , mathematics , statistics , algorithm , linguistics , philosophy
The deep hole drilling (DHD) method measures the through‐thickness distribution of residual stress in a component. Sources of uncertainty in the application of the method are identified and three different methods for determining the magnitudes of uncertainty are presented. The analyses are applied to experimental measurements of stress in two calibration studies for ferritic steel and an aluminium alloy. Finally, the residual stresses measured in a repair welded steel pipe are examined to assess the level of uncertainty.