TY - GEN
T1 - Reliability evaluation of stress in the direction of thickness based on ultrasonic measurement method
AU - Zhou, Kun
AU - Pan, Qinxue
AU - Shao, Chang
AU - Pan, Ruipeng
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/10/5
Y1 - 2018/10/5
N2 - Based on the acoustoelastic theory, the ultrasonic nondestructive testing method of stress distribution in the thickness direction or bolt axial direction (which is called the Z axis after) is studied. The detection formula was deduced by combining the shear wave and the longitudinal wave, and the stress coefficient is replaced by the acoustoelasticity coefficient to reduce the impacts of the test principle, the uneven thickness and inaccurate stress coefficient. Then the software of ultrasonic testing stress in Z axis direction is compiled by combining interpolation with cross-correlation algorithm, and the detection system is constructed. Tensile tests are conducted with bolts of different specification and length. Error of tensile stress detection, compared with the calculation, is extremely subtle. When the stress increases to over 100MPa, the relative error is less than 5%. The experiment results show that this reliability evaluation method for stress in the direction of thickness is feasible.
AB - Based on the acoustoelastic theory, the ultrasonic nondestructive testing method of stress distribution in the thickness direction or bolt axial direction (which is called the Z axis after) is studied. The detection formula was deduced by combining the shear wave and the longitudinal wave, and the stress coefficient is replaced by the acoustoelasticity coefficient to reduce the impacts of the test principle, the uneven thickness and inaccurate stress coefficient. Then the software of ultrasonic testing stress in Z axis direction is compiled by combining interpolation with cross-correlation algorithm, and the detection system is constructed. Tensile tests are conducted with bolts of different specification and length. Error of tensile stress detection, compared with the calculation, is extremely subtle. When the stress increases to over 100MPa, the relative error is less than 5%. The experiment results show that this reliability evaluation method for stress in the direction of thickness is feasible.
KW - Longitudinal wave
KW - Reliability evaluation
KW - Shear
KW - Stress
KW - Ultrasonic nondestructive testing
UR - http://www.scopus.com/inward/record.url?scp=85056326677&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2018.8484614
DO - 10.1109/ICMA.2018.8484614
M3 - Conference contribution
AN - SCOPUS:85056326677
T3 - Proceedings of 2018 IEEE International Conference on Mechatronics and Automation, ICMA 2018
SP - 1481
EP - 1485
BT - Proceedings of 2018 IEEE International Conference on Mechatronics and Automation, ICMA 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th IEEE International Conference on Mechatronics and Automation, ICMA 2018
Y2 - 5 August 2018 through 8 August 2018
ER -