TY - GEN
T1 - Detection of stress concentration and early plastic deformation by monitoring surface weak magnetic field change
AU - Yuan, Junjie
AU - Zhang, Weimin
PY - 2010
Y1 - 2010
N2 - The magnetization upon ferromagnetic samples induced by applied stresses was studied through experiments by using high sensitive magnetic sensors. The stress-magnetic coupling under cyclic tensile stress was studied during slow cyclic loading and fatigue loading process respectively. The monitoring data validated the efficiency of metal magnetic memory testing on identifying stress concentration zones. After the steel samples were stretched into plastic deformation, the surface magnetic fields of them were found reversing their polarities. This phenomenon was first proposed and discussed by introducing the theory of magnetic dipole and dislocation of metallic crystal. Based on that, a nondestructive testing method for monitoring the occurrence of plastic deformation through measuring the surface weak magnetic field changes of ferromagnetic structures was put forward and verified through preliminary experiment.
AB - The magnetization upon ferromagnetic samples induced by applied stresses was studied through experiments by using high sensitive magnetic sensors. The stress-magnetic coupling under cyclic tensile stress was studied during slow cyclic loading and fatigue loading process respectively. The monitoring data validated the efficiency of metal magnetic memory testing on identifying stress concentration zones. After the steel samples were stretched into plastic deformation, the surface magnetic fields of them were found reversing their polarities. This phenomenon was first proposed and discussed by introducing the theory of magnetic dipole and dislocation of metallic crystal. Based on that, a nondestructive testing method for monitoring the occurrence of plastic deformation through measuring the surface weak magnetic field changes of ferromagnetic structures was put forward and verified through preliminary experiment.
UR - https://www.scopus.com/pages/publications/78649236529
U2 - 10.1109/ICMA.2010.5589109
DO - 10.1109/ICMA.2010.5589109
M3 - Conference contribution
AN - SCOPUS:78649236529
SN - 9781424451418
T3 - 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010
SP - 395
EP - 400
BT - 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010
T2 - 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010
Y2 - 4 August 2010 through 7 August 2010
ER -