Preprints of the National Meeting of JWS
Preprints of the National Meeting of JWS
Session ID : 115
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Host: Japan Welding Society

Evaluation of ductile crack initiation limit of CWP test using AC potential method
*SATOSHI IGI, NOBUYUKI ISHIKAWA, SHIGEAKI SUGIMOTO
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Keywords: Ductile crack initiation, Curved Wide Plate test, AC potential method
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Abstract
Ductile fracture behavior of high strength linepipe steel is evaluated by the CWP (Curved Wide Plate) test. Crack initiation from the EDM notch prepared in circumferential girth weld is measured by the AC (alternating-current) potential method. And it is compared with experimental and finite elemet analysis result such as a crack tip opening displacement.
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© 2008 by Japan Welding Society
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