Calibration of hole-in-hole residual-stress measurement technique. Final report
The hole-in-hole residual-stress measurement technique was investigated as a way to measure the residual-stress distribution through intermediate-thickness (12-mm) metal parts. Relieved surface-strain data from a set of hole-in-hole calibration experiments were evaluated. The large hole was found to cause a stress-concentration problem in the region below its bottom which the next small hole investigates. This stress concentration could be corrected by calibration, but it was easier to modify the test technique by eliminating the small holes and using finer increments of the large hole. Therefore, an incremental-drilling technique appears to be a better method for measuring the residual-stress distribution through intermediate-thickness metal parts.
- Research Organization:
- Bendix Corp., Kansas City, MO (USA)
- DOE Contract Number:
- AC04-76DP00613
- OSTI ID:
- 6199508
- Report Number(s):
- BDX-613-2914; ON: DE83011408
- Country of Publication:
- United States
- Language:
- English
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