TY - GEN
T1 - A baseline-free fatigue crack detection approach in orthotropic steel deck using ultrasonic guided waves
AU - Wang, Peng
AU - Zhou, Wensong
AU - Li, Hui
N1 - Publisher Copyright:
© 2019 by DEStech Publications, Inc. All rights reserved.
PY - 2019
Y1 - 2019
N2 - A baseline-free methodology utilizing ultrasonic guided waves based on adjacent signal difference coefficients (ASDC) is developed for fatigue cracks detection in orthotropic steel deck in this paper. The crack detection tests are conducted on a test orthotropic steel deck with cracks added under welded stiffeners in advance. Two different cases, i.e. the crack far away from the floorbeam and the crack under the intersection of longitudinal trapezoidal rib and floorbeam have been tested. Locations and lengths of fatigue cracks can be obtained from the adjacent signal difference coefficients. The results show that the proposed baseline-free ultrasonic guided wave method detects and estimates the locations and lengths of the cracks correctly for all cases. This indicates that the proposed baseline-free fatigue crack detection approach has the potential to be applied to the crack detection in actual orthotropic steel decks.
AB - A baseline-free methodology utilizing ultrasonic guided waves based on adjacent signal difference coefficients (ASDC) is developed for fatigue cracks detection in orthotropic steel deck in this paper. The crack detection tests are conducted on a test orthotropic steel deck with cracks added under welded stiffeners in advance. Two different cases, i.e. the crack far away from the floorbeam and the crack under the intersection of longitudinal trapezoidal rib and floorbeam have been tested. Locations and lengths of fatigue cracks can be obtained from the adjacent signal difference coefficients. The results show that the proposed baseline-free ultrasonic guided wave method detects and estimates the locations and lengths of the cracks correctly for all cases. This indicates that the proposed baseline-free fatigue crack detection approach has the potential to be applied to the crack detection in actual orthotropic steel decks.
UR - https://www.scopus.com/pages/publications/85074258581
U2 - 10.12783/shm2019/32327
DO - 10.12783/shm2019/32327
M3 - 会议稿件
AN - SCOPUS:85074258581
T3 - Structural Health Monitoring 2019: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT) - Proceedings of the 12th International Workshop on Structural Health Monitoring
SP - 1955
EP - 1962
BT - Structural Health Monitoring 2019
A2 - Chang, Fu-Kuo
A2 - Guemes, Alfredo
A2 - Kopsaftopoulos, Fotis
PB - DEStech Publications Inc.
T2 - 12th International Workshop on Structural Health Monitoring: Enabling Intelligent Life-Cycle Health Management for Industry Internet of Things (IIOT), IWSHM 2019
Y2 - 10 September 2019 through 12 September 2019
ER -