TY - GEN
T1 - Ultrasonic guided wave SHM for probabilistic fatigue crack growth prognostics
AU - Lissenden, C. J.
AU - McGill, W. L.
AU - Li, S.
PY - 2011
Y1 - 2011
N2 - Ultrasonic guided waves are used to characterize the size of a fatigue crack growing from a fastener hole in a plate structure based on a transmission coefficient ratio. The measurement uses the S0 Lamb wave mode and two wave paths from a single transmitter; a test path that is partially obstructed by the hole, and a reference path that is effectively unaltered by fatigue crack growth. Thus, three piezoelectric disk transducers are employed. Results from four specimens are presented, and with the help of uncertainty modeling described in a companion paper, the bounds on predicted remaining useful life are determined.
AB - Ultrasonic guided waves are used to characterize the size of a fatigue crack growing from a fastener hole in a plate structure based on a transmission coefficient ratio. The measurement uses the S0 Lamb wave mode and two wave paths from a single transmitter; a test path that is partially obstructed by the hole, and a reference path that is effectively unaltered by fatigue crack growth. Thus, three piezoelectric disk transducers are employed. Results from four specimens are presented, and with the help of uncertainty modeling described in a companion paper, the bounds on predicted remaining useful life are determined.
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M3 - Conference contribution
AN - SCOPUS:84866672828
SN - 9781605950532
T3 - Structural Health Monitoring 2011: Condition-Based Maintenance and Intelligent Structures - Proceedings of the 8th International Workshop on Structural Health Monitoring
SP - 1940
EP - 1947
BT - Structural Health Monitoring 2011
T2 - 8th International Workshop on Structural Health Monitoring 2011: Condition-Based Maintenance and Intelligent Structures
Y2 - 13 September 2011 through 15 September 2011
ER -