Results 41 to 50 of about 98,820 (198)

Seasonal and spatial variations in the ocean-coupled ambient wavefield of the Ross Ice Shelf [PDF]

open access: yes, 2019
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Baker, M. G., Aster, R. C., Anthony, R. E., Chaput, J., Wiens, D. A., Nyblade, A., Bromirski, P.
Anthony, Robert E.   +8 more
core   +1 more source

Propagation of Non-Linear Lamb Waves in Adhesive Joint with Micro-Cracks Distributing Randomly

open access: yesApplied Sciences, 2020
With the advantages of uniform stress transfer and weight reduction, adhesive joints are widely used in engineering. The propagation of non-linear Lamb waves in an adhesive joint with micro-cracks distributing in a random way is systematically ...
Xiaoyang Li   +3 more
doaj   +1 more source

Ionospheric Lamb Waves With Conical Phase Fronts Following the 2022 Tonga Eruption Unveiled by BeiDou GEO Observations

open access: yesGeophysical Research Letters
Prior observational uncertainties have hindered the clear understanding of the link between tropospheric Lamb waves and ionospheric disturbances. In this study, we precisely extracted ionospheric Lamb waves originating from the epicenter of the 15 ...
Ruoxi Li   +9 more
doaj   +1 more source

Using the Partial Wave Method for Wave Structure Calculation and the Conceptual Interpretation of Elastodynamic Guided Waves

open access: yesApplied Sciences, 2018
The partial-wave method takes advantage of the Christoffel equation’s generality to represent waves within a waveguide. More specifically, the partial-wave method is well known for its usefulness when calculating dispersion curves for multilayered ...
Christopher Hakoda, Cliff J. Lissenden
doaj   +1 more source

Tremor burst and triggering processes in Cascadia after the 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption

open access: yesGeomatics, Natural Hazards & Risk
Episodic Tremors and Slip (ETS) are highly susceptible and sensitive to external stress perturbations. The tidal and remote triggering phenomena of tremors are well-documented globally, however, the significance of the delayed triggering mechanism ...
Sambit Sahoo   +5 more
doaj   +1 more source

Comparative Study of Coupling Techniques in Lamb Wave Testing of Metallic and Cementitious Plates

open access: yesSensors, 2019
Lamb waves have emerged as a valuable tool to examine long plate-like structures in a faster way compared to conventional bulk wave techniques, which make them attractive in non-destructive testing.
Santiago Vázquez   +5 more
doaj   +1 more source

Simulation of ultrasonic lamb wave generation, propagation and detection for an air coupled robotic scanner [PDF]

open access: yes, 2011
A computer simulator, to facilitate the design and assessment of a reconfigurable, air-coupled ultrasonic scanner is described and evaluated. The specific scanning system comprises a team of remote sensing agents, in the form of miniature robotic ...
Burnham, Kenneth   +6 more
core   +1 more source

Laser beam shaping for enhanced Zero-Group Velocity Lamb modes generation

open access: yes, 2016
Optimization of Lamb modes induced by laser can be achieved by adjusting the spatial source distribution to the mode wavelength ($\lambda$). The excitability of Zero-Group Velocity (ZGV) resonances in isotropic plates is investigated both theoretically ...
Bruno, François   +4 more
core   +3 more sources

Numerical modeling and measurement by pulsed television holography of ultrasonic displacement maps in plates with through-thickness defects [PDF]

open access: yes, 2010
We present a novel numerical modeling of ultrasonic Lamb and Rayleigh wave propagation and scattering by through-thickness defects like holes and slots in homogeneous plates, and its experimental verification in both near and far field by a self ...
Amlani, Faisal   +6 more
core   +1 more source

The Power Flow Angle of Acoustic Waves in Thin Piezoelectric Plates [PDF]

open access: yes, 2008
The curves of slowness and power flow angle (PFA) of quasi-antisymmetric (A0) and quasi-symmetric (S0) Lamb waves as well as quasi-shear-horizontal (SH0) acoustic waves in thin plates of lithium niobate and potassium niobate of X-,Y-, and Z-cuts for ...
Joshi, Shrinivas   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy