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| Numerical simulation and experiments of magnetic flux leakage inspection in pipeline steel Xun-Bo Li
The Journal of Mechanical Science and Technology, vol. 23, no. 1, pp.109-113, 2009
Abstract : The magnetic flux leakage (MFL) method is currently the most commonly used pipeline inspection technique. In
this paper, numerical simulation and experimental investigation on defect inspection in pipeline steel using MFL were
carried out. In theoretical analysis, typical three-dimensional (3D) defects were accurately modeled and detailed MFL
signals in the test surface were calculated by 3D finite element method (FEM). To confirm the 3D FEM results, different
artificial defects were made and the MFL experiments were performed. The experimental study demonstrated that
the results were agreement with the 3D FEM result. The results show that the 3D FEM is an effective analysis method
for pipeline steel MFL inspection.
Keyword :
Finite element method; Inspection; Magnetic flux leakage; Pipeline steel
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