Results 21 to 30 of about 145,304 (328)
Axial Stress Measurement of Steel Tubes Using Ultrasonic Guided Waves. [PDF]
Sensors (Basel), 2022 Axially loaded steel tubes are widely used as primary structural members in civil engineering structures. In this paper, a stress measurement method for axially loaded steel tubes is developed based on the linear relationship between the group velocity ...
Zhu S, Xu X, Han J, Luo Y.
europepmc +2 more sources
Quantitative Detection of Pipeline Cracks Based on Ultrasonic Guided Waves and Convolutional Neural Network. [PDF]
Sensors (Basel)In this study, a quantitative detection method of pipeline cracks based on a one-dimensional convolutional neural network (1D-CNN) was developed using the time-domain signal of ultrasonic guided waves and the crack size of the pipeline as the input and ...
Shen Y +5 more
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Structural Health Monitoring Using Ultrasonic Guided-Waves and the Degree of Health Index. [PDF]
Sensors (Basel), 2021 This paper proposes a new damage index named degree of health (DoH) to efficiently tackle structural damage monitoring in real-time. As a key contribution, the proposed index relies on a pattern matching methodology that measures the time-of-flight ...
Cantero-Chinchilla S +5 more
europepmc +2 more sources
Laser-Induced Ultrasonic Guided Waves Based Corrosion Diagnosis of Rail Foot
IEEE Transactions on Instrumentation and Measurement, 2023 Rail foot corrosion is an important issue for the electrified railway system. It usually initiates at the bottom of rail foot edges covered by a rail clip and is hardly accessible to conventional online inspection systems.
Wensong Wang +6 more
semanticscholar +1 more source
Shock and Vibration, 2022 In mining engineering, the in situ stress changes with the stress induced by the surrounding mining activities. It positively or negatively affects the propagation of ultrasonic guided waves in rockbolts.
Shuisheng Yu, Leilei Niu, Jin Chen
doaj +1 more source
IEEE Access, 2021 Low detection accuracy and narrow detection range are observed when detecting weak guided wave signals with the Duffing oscillator as a result of a limited frequency band.
Jing Wu +5 more
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Measurement, 2022 This paper aims to investigate the use of ultrasonic guided wave (GW) propagation mechanism and the assessment of debonding in a sandwich composite structure (SCS) using a multi-step approach.
K. Balasubramaniam +3 more
semanticscholar +1 more source
Nonlinear ultrasonic guided waves—Principles for nondestructive evaluation
, 2021 Research into the use of nonlinear ultrasonic guided waves for nondestructive evaluation is expanding at a high rate because of the great potential benefit that they possess for early detection of material degradation.
C. Lissenden
semanticscholar +1 more source
Numerical Investigation of Excitation of Various Lamb Waves Modes in Thin Plastic Films
Applied Sciences, 2022 Ultrasonic-guided waves are widely used for the non-destructive testing and material characterization of plates and thin films. In the case of thin plastic polyvinyl chloride (PVC), films up to 3.2 MHz with only two Lamb wave modes, antisymmetrical A0 ...
Rymantas Jonas Kazys +2 more
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Ultrasonic guided waves in elliptical annular cylinders [PDF]
The Journal of the Acoustical Society of America, 2015 This paper studies the influence of cross-section ovalness or ellipticity on lower order axisymmetric guided wave modes in thin pipes. The second longitudinal mode L(0,2) and the fundamental torsional mode T(0,1) are studied, as these are of interest to current pipe inspection.
Prabhu, Rajagopal +1 more
openaire +2 more sources