비파괴검사학회지 (Journal of the Korean Society for Nondestructive Testing)
- 제10권1호
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- Pages.91-95
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- 1990
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- 1225-7842(pISSN)
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- 2287-402X(eISSN)
Barkhausen noise를 이용한 용접 잔류응력 측정
Welding Residual Stress Measurement by Barkhausen Noise Method
초록
Welding residual stress was measured by Barkhausen noise method. The calibration experiment was done for the quantitative analysis. The specimen for the calibration experiment must has the same thermo-mechanical history as the actual material to be tested. The Barkhausen noise were analysed by the pulse-height distribution. The results show that the distribution and magnitude of welding residual stress from Barkhausen noise method are in good agreement with those from blind hole method.
키워드