Weak magnetic signal characteristic research method for ferromagnetic material

The invention discloses a weak magnetic signal characteristic research method for a ferromagnetic material, which comprises the following steps of: according to a magnetomechanical model in the step of establishing the magnetomechanical model, verifying the magnetomechanical model through a pipeline...

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Main Authors LIU BIN, RYUM JUNG, FU YANDUO, GENG HAO, WU ZIHAN, YU HUI, ZHANG JIA, XING YANHAO, XIA FENG, YANG LIJIAN, HE LUYAO, REN JIAN
Format Patent
LanguageChinese
English
Published 02.05.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The invention discloses a weak magnetic signal characteristic research method for a ferromagnetic material, which comprises the following steps of: according to a magnetomechanical model in the step of establishing the magnetomechanical model, verifying the magnetomechanical model through a pipeline welding seam model, a pipeline welding seam crack model and a pipeline base material crack model in the step of initial pressure simulation calculation; the method comprises the following steps: verifying a magnetomechanical model, carrying out pressurization simulation calculation according to the verified magnetomechanical model to obtain the stress damage degree of the magnetomechanical model of a pipeline weld joint model, a pipeline weld joint crack model and a pipeline base metal crack model, and calculating the stress damage degree of the magnetomechanical model based on the pressurization simulation calculation step through a gradient energy factor calculation step and a year-on-year growth rate introducti
Bibliography:Application Number: CN202310064392