A new magnetic structural algorithm based on virtual crack closure technique and magnetic flux leakage testing for circumferential symmetric double-crack propagation of X80 oil and gas pipeline weld

2019 ◽  
Vol 231 (3) ◽  
pp. 1187-1207 ◽  
Author(s):  
Wei Cui ◽  
Yuhang Zhang ◽  
Zhongmin Xiao ◽  
Qiang Zhang
Keyword(s):  
Magnetic Flux ◽  
Crack Propagation ◽  
Crack Closure ◽  
Oil And Gas ◽  
Gas Pipeline ◽  
Magnetic Flux Leakage ◽  
Virtual Crack Closure Technique ◽  
Closure Technique ◽  
Flux Leakage ◽  
Magnetic Flux Leakage Testing

ANSYS Simulation Technology of Pipeline Magnetic Flux Leakage Inspection

2013 ◽  
Vol 718-720 ◽  
pp. 1000-1005
Author(s):  
Li Jian Yang ◽  
Sen Lin Zhang ◽  
Song Wei Gao
Keyword(s):  
Magnetic Field ◽  
Finite Element ◽  
Electromagnetic Field ◽  
Magnetic Flux ◽  
Oil And Gas ◽  
Gas Pipeline ◽  
Magnetic Flux Leakage ◽  
Field Calculation ◽  
Inspection Method ◽  
Flux Leakage

In order to solve the need of the oil and gas pipeline defect quantification in the real-time online defecting, magnetic flux leakage inspection method was applied to oil and gas pipeline inspection. According to the basic theory of the electromagnetic field, finite element solution of electromagnetic field and ANSYS electromagnetic field calculation theory, using the function of ANSYS 's simulation and calculation for magnetic field, three-dimensional finite element model of the oil and gas pipeline defect was built up. Through simulating, the relationship between defect signal and defect size was found, the optimal distance of the hall sensor lift-off value was verified, the best magnetization of leakage magnetic field was discussed, and various factors to influence the magnetic flux leakage signal is analyzed.

Solenoid Model for the Magnetic Flux Leakage Testing Based on the Molecular Current

2018 ◽  
Vol 54 (12) ◽  
pp. 1-14
Author(s):  
Yonggang Wang ◽  
Yuhua Cheng ◽  
Libing Bai ◽  
Jie Zhang ◽  
Haichao Yu ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Magnetic Flux Leakage ◽  
Flux Leakage ◽  
Magnetic Flux Leakage Testing
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