Welding Residual Stress Measurement by Barkhausen Noise Method

Barkhausen noise를 이용한 용접 잔류응력 측정

  • 이승석 (한국표준연구소 비파괴시험연구실) ;
  • 안봉영 (한국표준연구소 비파괴시험연구실)
  • Published : 1990.05.30

Abstract

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.

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