Magnetic leakage fields created by circular butt-welded joints of a trunk pipeline are characterized by a variety of topographies differing in both shape and extension. Four sources of magnetic leakage fields around a circular welded joint are distinguished. Each source is simulated by a dipole moment with certain parameters. The developed mathematical model makes it possible to describe with high accuracy the entire variety of topographies of leakage fields around circular butt-welded joints of a trunk pipeline.
A dipole model for magnetic leakage fields created by a circular butt-welded joint
Ein Dipolmodell für magnetische Streuflussfelder erzeugt durch eine stumpfgeschweißte Rundnaht
Russian Journal of Nondestructive Testing ; 41 , 9 ; 614-618
2005
5 Seiten, 4 Bilder, 2 Quellen
Aufsatz (Zeitschrift)
Englisch
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