Guided ultrasonic waves propagation imaging: A review

CC Chia, SY Lee, MY Harmin, Y Choi… - Measurement Science …, 2023‏ - iopscience.iop.org
This article presents a comprehensive review of the laser-based guided ultrasonic waves
propagation imaging (G-UPI) system and respective signal/data processing methods related …

Drawing dispersion curves: band structure customization via nonlocal phononic crystals

A Kazemi, KJ Deshmukh, F Chen, Y Liu, B Deng… - Physical Review Letters, 2023‏ - APS
Dispersion relations govern wave behaviors, and tailoring them is a grand challenge in
wave manipulation. We demonstrate the inverse design of phononic dispersion using …

On the control of the first Bragg band gap in periodic continuously corrugated beam for flexural vibration

A Pelat, T Gallot, F Gautier - Journal of Sound and Vibration, 2019‏ - Elsevier
This work aims to provide better physical understanding of Bragg band gap effects in
continuously periodic corrugated beams for flexural waves. The main outcome is the …

On the existence of zero-group velocity modes in free rails: Modeling and experiments

Y Wu, R Cui, K Zhang, X Zhu, JS Popovics - NDT & E International, 2022‏ - Elsevier
Zero-group velocity (ZGV) modes in rails are studied through simulation and experiments in
this work. Local resonances associated with ZGV modes appear as distinct, sharp peaks in …

Characterization of the full complex-valued stiffness tensor of orthotropic viscoelastic plates using 3D guided wavefield data

AH Orta, M Kersemans, NB Roozen… - … Systems and Signal …, 2023‏ - Elsevier
A two-stage inversion scheme is proposed to determine the full set of 9 complex-valued
stiffness properties of orthotropic viscoelastic plates using their 3D surface velocity response …

The multi-physics metawedge: graded arrays on fluid-loaded elastic plates and the mechanical analogues of rainbow trap** and mode conversion

EA Skelton, RV Craster, A Colombi… - New Journal of …, 2018‏ - iopscience.iop.org
We consider the propagation and mode conversion of flexural-acoustic waves along a fluid-
loaded graded array of elastic resonators, forming a metasurface. The multi-physics nature …

Towards real-time assessment of anisotropic plate properties using elastic guided waves

N Bochud, J Laurent, F Bruno, D Royer… - The Journal of the …, 2018‏ - pubs.aip.org
A method to recover the elastic properties, thickness, or orientation of the principal symmetry
axes of anisotropic plates is presented. This method relies on the measurements of …

Plane wave expansion and extended plane wave expansion formulations for Mindlin-Reissner elastic metamaterial thick plates

EJP Miranda Jr, SF Rodrigues, C Aranas Jr… - Journal of Mathematical …, 2022‏ - Elsevier
The plane wave expansion (PWE) and the extended plane wave expansion (EPWE)
formulations are derived in order to obtain the complex dispersion relation of flexural waves …

Determining longitudinal and transverse elastic wave attenuation from zero-group-velocity Lamb waves in a pair of plates

M Ryzy, I Veres, T Berer, M Salfinger… - The Journal of the …, 2023‏ - pubs.aip.org
A method for the determination of longitudinal and transverse bulk acoustic wave
attenuation from measurements of the decay-rate of two independent zero-group-velocity …

Measuring dispersion curves for bending waves in beams: a comparison of spatial fourier transform and inhomogeneous wave correlation

B Van Damme, A Zemp - Acta Acustica united with Acustica, 2018‏ - ingentaconnect.com
In this paper, two methods to acquire the dispersion of bending waves in beams are
compared: the spatial Fourier transform and inhomogeneous wave correlation. Two …