Calculation of leaky Lamb waves with a semi-analytical finite element method

T Hayashi, D Inoue - Ultrasonics, 2014 - Elsevier
A semi-analytical finite element method (SAFE) has been widely used for calculating
dispersion curves and mode shapes of guided waves as well as transient waves in a bar like …

Notes on osculations and mode tracing in semi-analytical waveguide modeling

H Gravenkamp, B Plestenjak, DA Kiefer - Ultrasonics, 2023 - Elsevier
The dispersion curves of (elastic) waveguides frequently exhibit crossings and osculations
(also known as veering, repulsion, or avoided crossing). Osculations are regions in the …

Numerical modeling of three-dimensional open elastic waveguides combining semi-analytical finite element and perfectly matched layer methods

KL Nguyen, F Treyssede, C Hazard - Journal of Sound and Vibration, 2015 - Elsevier
Among the numerous techniques of non-destructive evaluation, elastic guided waves are of
particular interest to evaluate defects inside industrial and civil elongated structures owing to …

Numerical modeling of embedded solid waveguides using SAFE-PML approach using a commercially available finite element package

P Zuo, X Yu, Z Fan - NDT & E International, 2017 - Elsevier
Guided waves are attractive for long range inspections from a single generation position.
However when the waveguide is embedded in another medium, the energy of the guided …

[HTML][HTML] Calculating the full leaky Lamb wave spectrum with exact fluid interaction

DA Kiefer, M Ponschab, SJ Rupitsch… - The Journal of the …, 2019 - pubs.aip.org
Lamb waves are elastodynamic guided waves in plates and are used for non-destructive
evaluation, sensors, and material characterization. These applications rely on the …

SAFE-PML approach for modal study of waveguides with arbitrary cross sections immersed in inviscid fluid

P Zuo, Z Fan - Journal of Sound and Vibration, 2017 - Elsevier
Ultrasonic guided wave is an important non-destructive tool for large area inspections of
immersed structures as well as fluid characterizations. In this paper, a numerical tool is …

Simultaneous Estimation of P-and S-Wave Velocities by Integrated Inversion of Guided-P and Surface Wave Dispersion Curves

Z Wang, C Sun, D Wu - Surveys in Geophysics, 2024 - Springer
Compared with surface wave corresponding to the normal mode, which is widely studied,
there is less research on guided-P wave corresponding to the leaking mode. Guided-P wave …

Dispersion analysis of composite acousto-elastic waveguides

AV Astaneh, MN Guddati - Composites Part B: Engineering, 2017 - Elsevier
Propagation characteristics of guided waves are widely utilized for nondestructive
characterization of laminated composites which are often immersed in fluid. These …

Damage imaging in Lamb wave-based inspection of adhesive joints

M Rucka, E Wojtczak, J Lachowicz - Applied Sciences, 2018 - mdpi.com
Adhesive bonding has become increasingly important in many industries. Non-destructive
inspection of adhesive joints is essential for the condition assessment and maintenance of a …

Semi-analytical IGA-based computation of wave dispersion in fluid-coupled anisotropic poroelastic plates

F Seyfaddini, H Nguyen-Xuan, VH Nguyen - International Journal of …, 2021 - Elsevier
Understanding dispersion relations and wave mode shapes is vital in nondestructive control
of dynamic behaviors of poroelastic composites. In the framework of semi-analytical finite …