期刊
EXPERIMENTAL MECHANICS
卷 54, 期 9, 页码 1515-1522出版社
SPRINGER
DOI: 10.1007/s11340-014-9935-6
关键词
Residual stress; Hole-drilling; Finite thickness; ASTM E837; Calibration constants
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- American Stress Technologies, Pittsburgh, PA
- Institute for Computing, Information and Cognitive Systems (ICICS) at UBC
Hole-drilling measurements of residual stresses are traditionally made on materials that are either very thick or very thin compared with the hole diameter. The calibration constants needed to evaluate the local residual stresses from the measured strain data are well established for these two extreme cases. However, the calibration constants for a material with finite thickness between the extremes cannot be determined by simple interpolations because of the occurrence of local bending effects not present at either extreme. An analytical model is presented of the bending around a drilled hole in a finite thickness material and a practical procedure is proposed to evaluate the corresponding hole-drilling calibration constants.
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