Detection of fatigue cracks at weld toes by crack detection paint and surface SH wave

被引：2

作者：

Takahashi, Ichihiko ^{[1
]}

Ushijima, Michio ^{[1
]}

机构：

[1] Natl Maritime Res Inst, Tokyo 1810004, Japan

来源：

MATERIALS TRANSACTIONS | 2007年 / 48卷 / 06期

关键词：

fatigue crack; welded joint; weld toe; visual inspection; crack detection paint; microcapsule; surface secondary horizontal (SH) wave;

D O I：

10.2320/matertrans.I-MRA2007845

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A crack detection (CD) paint was applied to weld lines of a transverse rib welded joint specimen of a rolled steel for welded structures, and the effects of the paint on visual detection of fatigue cracks were evaluated by performing a fatigue test. Remarkable color development was observed in the CD paint when fatigue cracks propagated along the weld toe lines. At intervals in the fatigue test, surface SH (Secondary Horizontal) wave tests were also carried out in order to confirm the existence of fatigue cracks, and the test results were compared with the color development in the CD paint.

引用

页码：1190 / 1195

页数：6