Journal
NDT & E INTERNATIONAL
Volume 39, Issue 1, Pages 61-66Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ndteint.2005.06.006
Keywords
MFL; FEM; defect; inspection; pipeline
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The magnetic flux leakage (MFL) method is currently the most commonly used pipeline inspection technique. In this paper, 3D FEM is used to analyze the MFL signals, a generalized potential formulation to the magnetostatic field MFL problem is discussed, typical 3D defects are accurately modeled and detail MFL signal in test surface are calculated by the method. The relation between defect parameters and MFL signals are also analyzed. (c) 2005 Elsevier Ltd. All rights reserved.
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