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Pipeline magnetic shield modeling for deformation and displacement detection

Authors: Yu Zhang (Tianjin University) , Xinjing Huang (Tianjin University) , Jian Li (Tianjin University) , Hao Feng (Tianjin University)

Abstract

Pipeline magnetic shield factors are key parameters for magnetic inspections of pipeline trajectory, deformation, and displacement. This paper reveals the magnetic shielding model of long pipelines via simulation analyses based on the finite element simulations and experiments of the magnetic shielding of long pipelines. It is demonstrated that the radial and axial shielding factors of a finite pipe can be accurately calculated by the FEM; for a long pipeline consisting of many short sections, the averaged shielding factors over a couple of adjacent sections are equal to that of an ideal infinite pipeline, and the axial factor is always equal to 1.

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How to Cite: Zhang, Y. . , Huang, X. . , Li, J. . & Feng, H. . (2019) “Pipeline magnetic shield modeling for deformation and displacement detection”, Review of Progress in Quantitative Nondestructive Evaluation.(0).