Results 21 to 30 of about 4,693 (226)
MATEC Web of Conferences, 2019 Lamb waves, as one of the types of guided waves, are extensively used for inspecting large structures as well as for structure health monitoring applications.
Šofer Michal +4 more
doaj +1 more source
The Suitability of Using 3D PLA Printed Wedges for Ultrasonic Wave Propagation
IEEE Access, 2020 This work studies the suitability of using 3D printed PLA wedges made through additive manufacturing to propagate Lamb waves in plate structures instead of using rather more expensive commercial wedges.
Antonio J. Balvantin +5 more
doaj +1 more source
Earth, Planets and Space, 2022 Meteotsunamis (forced waves) triggered by atmospheric disturbances of Lamb waves due to the 2022 Hunga–Tonga volcanic eruption have been observed in coastal areas surrounding the Pacific Ocean.
Takashi Tonegawa, Yoshio Fukao
doaj +1 more source
Subsonic Lamb waves in anisotropic plates [PDF]
Quarterly of Applied Mathematics, 2002 A six-dimensional complex formalism for analysis of Lamb waves propagating with subsonic speed in anisotropic plates is formulated. Conditions for nonexistence of certain Lamb waves in anisotropic plates are obtained. An example of a transversely isotropic plate having “forbidden” speed at which no subsonic Lamb wave propagates is presented.
openaire +1 more source
Study of Lamb Waves for Non-Destructive Testing Behind Screens
EPJ Web of Conferences, 2018 The inspection and control of sodium-cooled fast reactors (SFR) is a major issue for the nuclear industry. Ultrasonic solutions are under study because of the opacity of liquid sodium.
Kauffmann P. +5 more
doaj +1 more source
Global Winds Shape Planetary‐Scale Lamb Waves
Geophysical Research Letters, 2023 In 2022, the Hunga volcano eruption in Tonga generated atmospheric pressure waves that propagated globally and produced tsunamis in all the world's oceans.
Ignacio Sepúlveda +2 more
doaj +1 more source
Application of Nonlinear Lamb Wave Mixing Method for Residual Stress Measurement in Metal Plate
Chinese Journal of Mechanical Engineering, 2023 Harmonic nonlinear ultrasound can offer high sensitivity for residual stress measurements; however, it cannot be used for local stress measurements at a point in space and exhibits nonlinear distortions in the experimental system.
Jingpin Jiao +5 more
doaj +1 more source
A self-assembled metamaterial for Lamb waves [PDF]
Applied Physics Letters, 2015 We report the design and characterization of a self-assembled, locally resonant acoustic metamaterial for Lamb waves, composed of a monolayer of 1.02 μm polystyrene microspheres adhered to a 1.27 μm thick free-standing silicon membrane. A laser-induced transient grating technique is used to generate Lamb waves in the metamaterial and to measure its ...
Khanolkar, A. +5 more
openaire +3 more sources
Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes
Advanced Science, EarlyView.Ultrafast optoacoustic spectroscopy combined with a Sagnac interferometer enables non‐contact, simultaneous characterization of thickness and the full three‐dimensional anisotropic elastic constants in freestanding nanocrystalline copper membranes. By capturing gigahertz Lamb waves and zero‐group‐velocity resonances followed by SAFE‐GA inversion, the ...
Shuchang Zhang +11 more
wiley +1 more source
Advanced Science, EarlyView.Using grilled lamb skewers as a model system, this work builds a multiscale coupling framework from oral processing to retronasal aroma perception, reveals dual‐kinetic release patterns and Electroencephalogram‐characterized central encoding features, and proposes an interpretable physics‐guided deep learning model validated by multiphysics simulation,
Che Shen +12 more
wiley +1 more source