FEASIBILITY STUDY ON DETECTION OF FATIGUE CRACK IN FILLET WELDED JOINT

FEASIBILITY STUDY ON DETECTION OF FATIGUE CRACK IN FILLET WELDED JOINT
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角焊缝疲劳裂纹检测的可行性研究

DOI：
10.2208/jscej.1987.386_329
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发表时间：
1987
期刊：
Doboku Gakkai Ronbunshu
影响因子：
--
通讯作者：
Hisao Ohune
Hisao Ohune
中科院分区：
--
文献类型：
--
作者：
C. Miki;Makoto Fukazawa;M. Katoh;Hisao Ohune

文献摘要

被引文献

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比较和研究了各种无损检测方法对角焊缝疲劳裂纹的检测能力。结果表明，磁力探伤和涡流探伤对裂纹的检测是有效的。然而，在染料渗透检测的情况下，甚至不能检测到板表面上的宽裂纹。另一方面，对于裂纹深度的估计，使用超声检查的峰值回波法表现出色，可以检测深度大于2.5mm的裂纹，准确度优于1mm。
The crack detection ability was compared and investigated using various non-destructive testing methods on the fatigue cracks generated on the fillet welded joint. As a result, for the detection of cracks, the magnaflux examination and the eddy cullent examination were found effective. However, in the case of dye penetrant examination, even wide cracks on plate surface could not be detected. On the other hand, for the estimation of the crack depth, the peak echo method using the ultrasonic examination was found excellent, allowing the detection of cracks with depth larger than 2.5mm, with an accuracy of better than 1mm.