TY - JOUR
T1 - Performance of non-destructive evaluation by diffracted SH ultrasonic waves in predicting degree of fatigue in cyclic bending of ferritic steel
AU - Fukuhara, Mikio
AU - Kuwano, Yoshiyuki
AU - Saito, Kiyoshi
AU - Hirasawa, Taiji
AU - Komura, Ichiro
PY - 1998/6
Y1 - 1998/6
N2 - The degree of fatigue in ferritic wrought steel during cyclic bending was determined by anaylsis of diffracted SH ultrasonic waves with the aid of multiple regression analysis. As the degree of fatigue increases, accompanied by residual stress, the incident waves curve to the interior region with positive stress field owing to the acoustoelastic effect. As a result, the propagation time of the launched waves lengthens, leading to a modulation of the received waveform. Multiple regression analysis for the waveform modulation produces a reliable estimation, with correlation coefficient of 0.948, for the degree of fatigue.
AB - The degree of fatigue in ferritic wrought steel during cyclic bending was determined by anaylsis of diffracted SH ultrasonic waves with the aid of multiple regression analysis. As the degree of fatigue increases, accompanied by residual stress, the incident waves curve to the interior region with positive stress field owing to the acoustoelastic effect. As a result, the propagation time of the launched waves lengthens, leading to a modulation of the received waveform. Multiple regression analysis for the waveform modulation produces a reliable estimation, with correlation coefficient of 0.948, for the degree of fatigue.
KW - Fatigue prediction
KW - Ferritic steel
KW - SH ultrasonic waves
UR - http://www.scopus.com/inward/record.url?scp=0032097618&partnerID=8YFLogxK
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U2 - 10.1016/S0963-8695(97)00041-8
DO - 10.1016/S0963-8695(97)00041-8
M3 - Article
AN - SCOPUS:0032097618
VL - 31
SP - 211
EP - 216
JO - NDT and E International
JF - NDT and E International
SN - 0963-8695
IS - 3
ER -