Results 11 to 20 of about 260,156 (333)
Ultrasonics, 2020 In this article, an attempt is made towards the experimental validation of a numerical method allowing vibro-acoustic and ultrasonic wave propagation analysis of complex woven composites. For this validation, three different woven architectures were used
V. Thierry, O. Mesnil, D. Chronopoulos
semanticscholar +3 more sources
Energy storage and dispersion of surface acoustic waves trapped in a periodic array of mechanical resonators [PDF]
Journal of Applied Physics, 2009 It has been shown previously that surface acoustic waves can be efficiently trapped and slowed by steep ridges on a piezoelectric substrate, giving rise to two families of shear-horizontal and vertically polarized surface waves. The mechanisms of energy storage and dispersion are explored by using the finite element method to model surface acoustic ...
Dühring, Maria, B. +2 more
openaire +4 more sources
Spectral Quantification of Nonlinear Elasticity Using Acoustoelasticity and Shear-Wave Dispersion
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019 Tissue biomechanical properties are known to be sensitive to pathological changes. Accordingly, various techniques have been developed to estimate tissue mechanical properties.
Corin F. Otesteanu +4 more
semanticscholar +2 more sources
Lamb Waves Propagation Characteristics in Functionally Graded Sandwich Plates
Sensors, 2022 Functionally graded materials (FGM) have received extensive attention in recent years due to their excellent mechanical properties. In this research, the theoretical process of calculating the propagation characteristics of Lamb waves in FGM sandwich ...
Jie Gao +4 more
doaj +1 more source
Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar [PDF]
Problemy Mechatroniki, 2016 A polymeric split Hopkinson pressure bar technique (SHPB) is preferred for testing materials with low mechanical impedance. However, the use of polymeric bars requires additional analysis for data reduction, temperature complications and additional ...
Jacek JANISZEWSKI +2 more
doaj +1 more source
Extended plane wave expansion formulation for 1-D viscoelastic phononic crystals
Partial Differential Equations in Applied Mathematics, 2023 The extended plane wave expansion (EPWE) method is formulated in order to obtain the complex dispersion diagram of bulk waves in 1-D viscoelastic phononic crystal solids considering the standard linear solid model (SLSM).
L.F.C. Schalcher +2 more
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Physiological Reports, 2022 Moderate hypothermia has been used to improve outcomes in comatose out‐of‐hospital cardiac arrest survivors during the past two decades, although the effects remain controversial.
Kristin Wisløff‐Aase +6 more
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A low/high frequency combined approach for the identification of mechanical properties of composite structural elements [PDF]
Theoretical and Applied Mechanics, 2012 A combined low/high frequency dynamic identification approach is presented. The proposed hybrid technique compares experimentally extracted dynamic properties of plates such as modal frequencies and guided wave dispersion properties with the ...
Bartoli Ivan, Marzaniy Alessandro
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International Journal of Mechanical Sciences, 2021 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 element (SAFE) method, this paper presents two numerical approaches so ...
F. Seyfaddini, H. Nguyen-Xuan, V. Nguyen
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Proceedings of the National Academy of Sciences of the United States of America, 2021 Significance Propagation of electromechanical waves in excitable heart muscles follows complex spatiotemporal patterns holding the key to understanding life-threatening arrhythmias.
Çağla Özsoy +4 more
semanticscholar +1 more source