Title :
Magnetic Memory Signals on Surface Defect of Ferromagnetic Specimen under Plastic Deformation Condition
Author :
Qingsong, Tu ; Weimin, Zhang ; Shuxuan, Liu ; Yong, Yan
Author_Institution :
Beijing Inst. of Technol., Beijing, China
Abstract :
The distribution of surface metal magnetic memory (MMM) signals on flat-plate specimens of ferromagnetic materials has been investigated for three types of Q235, 45 steel and T10. Defects were made on the latter two materials in order to obtain concerned signals using magnetic memory sensor at different state of plastic deformation. Stress was calculated using finite element method under plastic strain condition. According to the theory of magnetic materials and magnetic memory effect, a strong correlation was found between the signals and stress.
Keywords :
carbon steel; ferromagnetic materials; finite element analysis; magnetic sensors; plastic deformation; plates (structures); shape memory effects; stress analysis; 45 steel; FeCJk; Q235 steel; T10 steel; carbon steel; ferromagnetic materials; finite element method; flat plate specimens; magnetic memory effect; magnetic memory sensor; plastic deformation; plastic strain; surface defect; surface metal magnetic memory signals; finite element; magnetic memory signal; plastic deformation; surface defect;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2010 International Conference on
Conference_Location :
ChangSha
Print_ISBN :
978-0-7695-4286-7
DOI :
10.1109/ICDMA.2010.66
