Results 1 to 10 of about 79,719 (263)

Guided Wave Characteristic Research and Probabilistic Crack Evaluation in Complex Multi-Layer Stringer Splice Joint Structure. [PDF]

open access: yesSensors (Basel), 2023
Multi-layer and multi-rivet connection structures are critical components in the structural integrity of a commercial aircraft, in which elements like skin, splice plate, strengthen patch, and stringer are fastened together layer by layer with multiple ...
Chen J, Xu Y, Yuan S, Qin Z.
europepmc   +2 more sources

High-Precision Corrosion Detection via SH1 Guided Wave Based on Full Waveform Inversion. [PDF]

open access: yesSensors (Basel), 2023
Corrosion detection for industrial settings is crucial for safe and efficient operations. Due to its high imaging resolution, the guided–wave full–waveform inversion tomography technique has significant potential for corrosion detection of plate metals ...
Wen J, Jiang C, Chen H.
europepmc   +2 more sources

A Study on the Development of the Stainless Steel Tube Bundle Structure Detecting System Using Ultrasonic Guided Wave. [PDF]

open access: yesSensors (Basel)
In this study, an ultrasonic guided wave system that can be used to detect broken tubes in stainless steel tube bundle structures (e.g., heat exchangers) with fairly narrow spacing between the tubes was designed. The interval between the tubes was 1.5 mm,
Kim J, Zhang J, Malikov AKU, Cho Y.
europepmc   +2 more sources

Manipulating guided wave radiation with integrated geometric metasurface. [PDF]

open access: yesNanophotonics, 2022
Metasurfaces have manifested unprecedented capabilities in manipulating light by subwavelength unit cells, facilitating the miniaturization and multifunctions of optical systems.
Fang B, Wang Z, Gao S, Zhu S, Li T.
europepmc   +2 more sources

Fatigue Crack Evaluation with the Guided Wave-Convolutional Neural Network Ensemble and Differential Wavelet Spectrogram. [PDF]

open access: yesSensors (Basel), 2021
On-line fatigue crack evaluation is crucial for ensuring the structural safety and reducing the maintenance costs of safety-critical systems. Among structural health monitoring (SHM), guided wave (GW)-based SHM has been deemed as one of the most ...
Chen J, Wu W, Ren Y, Yuan S.
europepmc   +2 more sources

Strength Development Monitoring of Cemented Paste Backfill Using Guided Waves

open access: yesSensors, 2021
The strength of cemented paste backfill (CPB) directly affects mining safety and progress. At present, in-situ backfill strength is obtained by conducting uniaxial compression tests on backfill core samples.
Wen He   +4 more
doaj   +1 more source

Quantification of Bedding Rock Slope Deformation Rate Using Guided Wave Monitoring

open access: yesFrontiers in Earth Science, 2022
The guided wave technique is applied to slope stability monitoring to overcome the high attenuation characteristics of acoustic emission propagation in rock and soil materials. The shear tests of “guided wave meter” (GWM) with different deformation rates
Changsong Zheng   +6 more
doaj   +1 more source

Research on jamming technology of frequency-stepping millimeter-wave guided seeker

open access: yesDianzi Jishu Yingyong, 2021
Aiming at the problem of how to implement effective countermeasures against frequency-stepping millimeter-wave precision guided weapons, this paper analyzes the working principle of two-dimensional imaging of frequency-stepping millimeter-wave guided ...
Xiang Zhengshan
doaj   +1 more source

Experimental and Numerical Studies on Bond Quality of Fully Grouted Rockbolt under Confining Pressure and Pull-Out Load

open access: yesShock 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

XAI for signal analysis of guided wave testing at pipe elbows

open access: yese-Journal of Nondestructive Testing, 2023
Guided wave testing can provide an efficient screening method for local wall thinning of piping owing to its long inspection range and its ability to inspect pipes with limited access.
Toshihiro Yamamoto   +2 more
doaj   +1 more source

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