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The Design and Verification of an Active SAMSR Ultrasonic Guided Wave Monitoring System with Ultra-Low Crosstalk [PDF]

open access: yesSensors, 2020
Due to long propagation distance and high sensitivity to a variety of damages, ultrasonic guided wave technologies have been widely applied in the damage detection or health monitoring of pipe networks and large plate-like structures.
Wendong Xue   +5 more
doaj   +2 more sources

Ultrasonic guided wave nondestructive testing of anchorage quality of rebar resin bolt based on EMD-PCA [PDF]

open access: yesScientific Reports
Currently, the ultrasonic guided wave inspection of the anchoring quality of rebar resin bolts in coal mine tunnels faces issues such as rapid signal energy attenuation, waveform superposition of reflected waves, and waveform complexity, making it ...
Kesong Fan   +6 more
doaj   +2 more sources

Ultrasonic Guided Wave Propagation through Welded Lap Joints [PDF]

open access: yesMetals, 2016
The objective of the research presented here is the investigation of ultrasonic guided wave (UGW) propagation through the lap joint welded plates used in the construction of a storage tank floors.
Audrius Jankauskas, Liudas Mazeika
doaj   +2 more sources

Study on monitoring broken rails of heavy haul railway based on ultrasonic guided wave [PDF]

open access: yesScientific Reports
Real-time monitoring of broken rails in heavy haul railways is crucial for ensuring the safe operation of railway lines. U78CrV steel is a common material used for heavy haul line rails in China.
Xining Xu   +5 more
doaj   +2 more sources

Kissing Bond Damage Identification and Evaluation in CFRP-Reinforced Steel Plates Using Mixed-Frequency Ultrasonic Guided Waves [PDF]

open access: yesSensors
CFRP laminates are widely adopted for the strengthening of steel structures and the debonding damage poses a severe threat to the integrity of CFRP-reinforced structures.
Ruiqi Guan   +5 more
doaj   +2 more sources

Detection of Arbitrary Frequency Ultrasonic Guided Wave Signals Based on the Time-Shift Duffing Oscillator

open access: yesIEEE 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
doaj   +1 more source

Numerical Investigation of Excitation of Various Lamb Waves Modes in Thin Plastic Films

open access: yesApplied 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
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

Ultrasonic guided wave detection of U-shaped pipeline [PDF]

open access: yesMATEC Web of Conferences, 2020
The guided waves in the elbow was analyzed using semi- analytical finite element method, which was used to calculate the dispersion curves, along with the vibration deformation and energy flow density distribution of the elbow cross-section.
Zhu Longxiang   +3 more
doaj   +1 more source

Open Guided Waves: online platform for ultrasonic guided wave measurements [PDF]

open access: yesStructural Health Monitoring, 2018
Ultrasonic guided waves have been used successfully in structural health monitoring systems to detect damage in isotropic and composite materials with simple and complex geometry. A limitation of current research is given by a lack of freely available benchmark measurements to comparatively evaluate existing methods.
Jochen Moll   +8 more
openaire   +4 more sources

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