Magnetic flux leakage (MFL) measurement is one of the most widely used non-destructive testing techniques for in-service inspection of oil and gas pipelines. Three methods, Numerical computation, theory analytical and experiment, have been used to model the MFL testing and have been investigated separately before. In this article, we introduced a MFL analytical model based on dipole magnetic charge method, a MFL Numerical model base on three dimensional FEM. Test equipment and samples were designed and produced to make a MFL experiment model, the results by three models were analysis. Analytical model can express MFL signal by an equation but it is difficult to deal with realistic defect shapes and the influence of test parameters. Compared with analytical method, numerical model can process different defects shapes, materials, magnetizing situation but it has a more complicated procedure and higher computational cost. Experiment results can validate the simulation of analytical and numerical models, while it difficult to do many experiment due to the high costs and time consuming.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Three modeling methods in MFL testing


    Additional title:

    Drei Modellmethoden in der magnetischen Streuflussprüfung


    Contributors:


    Publication date :

    2008


    Size :

    6 Seiten, 5 Bilder, 7 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




    An Approach for Testing Methods for Modeling Uncertainty

    Haftka, Raphael T. | Online Contents | 2006



    Testing... One, Two, Three

    British Library Online Contents | 1997


    Testing...One, Two, Three

    Online Contents | 1997


    Modeling, Design, and Flight Testing of Three Flutter Controllers for a Flying-Wing Drone

    Schmidt, David K. / Danowsky, Brian P. / Kotikalpudi, Aditya et al. | AIAA | 2020