TY - GEN
T1 - Evaluation of residual stresses in butt-welded joints by residual magnetic field measurements
AU - Liang, Bin
AU - Gong, Jianming
AU - Wang, Haitao
AU - Ye, Cheng
PY - 2012
Y1 - 2012
N2 - Measuring residual stray field (RMF) signals provides a promising tool to analyze the stress in ferromagnetic welded materials. In this paper, the variations of the normal component of the RMF, Hp(y), perpendicular to welded seam are measured. The finite element method is used to model residual stress in the specimen. The influence of residual stress on the Hp(y) component is shown. It is found that the distributions of the Hp(y) component are described by a Boltzmann fitting curve, show a good qualitative correlation with residual stress. A quantitative method for the evaluation of residual stress in ferromagnetic steels based on the gradient of the Hp(y) component and equivalent(vonMises) stress is presented.
AB - Measuring residual stray field (RMF) signals provides a promising tool to analyze the stress in ferromagnetic welded materials. In this paper, the variations of the normal component of the RMF, Hp(y), perpendicular to welded seam are measured. The finite element method is used to model residual stress in the specimen. The influence of residual stress on the Hp(y) component is shown. It is found that the distributions of the Hp(y) component are described by a Boltzmann fitting curve, show a good qualitative correlation with residual stress. A quantitative method for the evaluation of residual stress in ferromagnetic steels based on the gradient of the Hp(y) component and equivalent(vonMises) stress is presented.
KW - Finite element method
KW - Metal magnetic memory method
KW - Residual magnetic field
KW - Stress evaluation
KW - Welding residual stress
UR - http://www.scopus.com/inward/record.url?scp=84870564845&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.217-219.2427
DO - 10.4028/www.scientific.net/AMM.217-219.2427
M3 - 会议稿件
AN - SCOPUS:84870564845
SN - 9783037855027
T3 - Applied Mechanics and Materials
SP - 2427
EP - 2434
BT - Advanced Materials and Process Technology
T2 - 2nd International Conference on Advanced Design and Manufacturing Engineering, ADME 2012
Y2 - 16 August 2012 through 18 August 2012
ER -