複雑形状欠陥の渦電流探傷による新しい深さサイジング法
英字タイトル:
A New Depth Sizing Method for Complex Shape Stress Corrosion Cracks from ECT Signals
著者:
兼本 茂 Shigeru KANEMOTO
発刊日:
公開日:
AICDepth SizingEddy Current TestSCC
A New Depth Sizing Method for Complex Shape Stress Corrosion Cracks from ECT Signals
著者:
兼本 茂 Shigeru KANEMOTO
発刊日:
公開日:
カテゴリ: 第3回
キーワードタグ:AICDepth SizingEddy Current TestSCC
概要
Depth sizing of multiple closely located parallel cracks are studied as a simplification of stress corrosion crack (SCC). Because of the interference from other cra cks, eddy current testing (ECT) signals of the multiple cracks are different from that of a single one, and the method used for the depth sizing of a single crack i s not practical for that of multiple cracks. In order to find a depth sizing index which is sensitive to just the maximum depth of multiple cracks, an optimum model finding method based on Akaike information criterion (AIC) is introduced. The method and the depth sizing index are validated both experimentally and numerically.
