824 多端子型直流電位差法による半楕円表面き裂の同定に関する実験的検討

概要

論文の詳細を見る
Potential difference method (PDM) is one of the best non-destructive methods for evaluation of the shape, location and size of defect on the surface of the material. The authors presented direct-current potential difference method with multiple-type probe where potential differences at different locations were efficiently utilized to evaluate the shape, location and size of a crack simultaneously. In this study, the evaluation was carried out for two types of semi-elliptical cracks, which were the cracks perpendicular and inclined to the surface of specimen. The location length, depth, angle of the cracks was successfully evaluated by the proposed method with satisfactory accuracy. The validity of the method was shown for actual semi-elliptical surface cracks embedded in plate specimens.
社団法人日本機械学会の論文
2003-08-05