Results 21 to 30 of about 52,925 (308)

Resonant Guided Wave Networks [PDF]

open access: yesPhysical Review Letters, 2010
9 pages, 5 ...
Feigenbaum, Eyal, Atwater, Harry A.
openaire   +4 more sources

Classification of solutions for guided waves in fluid-loaded viscoelastic composites with large numbers of layers [PDF]

open access: yes, 2023
Guided ultrasonic waves are used for the inspection of multilayered composite aerospace structures. Calculating the corresponding dispersion diagrams is challenging for thick-walled composites with more than 100 layers, such as in modern rocket booster ...
Armin M. A. Huber, Huber, Armin
core   +1 more source

EMAT Generated Guided Waves in Pipes

open access: yese-Journal of Nondestructive Testing, 2023
Pipeline integrity is a must to maintain for the oil and gas industry to avoid downtimes in case of disastrous events. Following this line, pipelines are periodically inspected to know their condition and make timely decisions for replacement or repair.
Azhar Memon, Luai M. Alhems
doaj   +1 more source

Surface Acoustic Wave (SAW) Sensors: Physics, Materials, and Applications

open access: yesSensors, 2022
Surface acoustic waves (SAWs) are the guided waves that propagate along the top surface of a material with wave vectors orthogonal to the normal direction to the surface.
Debdyuti Mandal, Sourav Banerjee
doaj   +1 more source

Numerical simulation of high frequency guided wave testing for anchor bolt defects

open access: yesMeitan kexue jishu, 2023
Previous research has confirmed that only high-frequency guided waves larger than 1 MHz have the minimum attenuation detection mode for anchor bolt widely used in underground projects.
Yanyu GUO, Changsuo ZHANG, Yue ZHANG
doaj   +1 more source

Numerical solver for the modelling of guided waves propagation under stress condition in the context of SHM applications.

open access: yes, 2023
International audienceIn leading-edge industrial applications, assessing structure integrity is an important aspect of safety requirements. Structural Health Monitoring (SHM) proposes to use sensors and signal processing units in situ.
Imperiale, Alexandre   +3 more
core   +3 more sources

A Metacoupler for Converting Propagating Waves to Guided Waves in Wire Waveguides

open access: yesIEEE Photonics Journal, 2017
Propagating electromagnetic waves in free space cannot directly couple to guided waves in waveguides due to momentum mismatch. Here, we propose a method to design a metacoupler that can convert propagating waves into guided waves along wire waveguides in
Hongchen Chu, Jie Luo, Yun Lai
doaj   +1 more source

Defect Detection and Imaging in Composite Structures Using Magnetostrictive Patch Transducers

open access: yesSensors, 2023
The use of thin magnetostrictive patches to generate and detect guided waves within the composite samples is investigated for defect detection. This approach has been implemented using SH0 shear horizontal guided waves in both CFRP and GFRP plates.
Akram Zitoun   +3 more
doaj   +1 more source

Guided solitary waves [PDF]

open access: yesProceedings of the National Academy of Sciences, 1980
Transversely periodic solitary-wave solutions of the Boussinesq equations (which govern wave propagation in a weakly dispersive, weakly nonlinear physical system) are determined. The solutions for negative dispersion (e.g., gravity waves) are singular and therefore physically unacceptable. The solutions for positive dispersion (e.g., capillary waves or
openaire   +2 more sources

Elastic Properties Measurement Using Guided Acoustic Waves

open access: yesSensors, 2021
Nondestructive evaluation of elastic properties plays a critical role in condition monitoring of thin structures such as sheets, plates or tubes. Recent research has shown that elastic properties of such structures can be determined with remarkable ...
Viktor Fairuschin   +3 more
doaj   +1 more source

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