Results 1 to 10 of about 4,652,142 (278)
AerospacePhononic crystals based on lattice structures provide important wave dispersion characteristics as band structures, showing excellent compatibility with additive manufacturing.
Natsuki Tsushima +2 more
doaj +4 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 ...
Abdelkrim Khelif, Vincent Laude
exaly +3 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
Ab Initio Study of Mechanical and Vibrational Characteristics of Uranium Monoxide in Nuclear Reactor [PDF]
Journal of Nuclear Research and Applications, 2023 In this research, the mechanical and phonon properties of UO in the rock-salt phase have been calculated systematically using density functional theory and ab-initio method in projector augmented wave pseudopotentials parameterization.
M. H. Sahafi, E. Cholaki
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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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Experimental evidence of shear waves in fractional viscoelastic rheological models
Scientific Reports, 2022 Fractional viscoelastic rheological models, such as the Kelvin Voigt Fractional Derivative model, have been proposed in the literature for modelling shear wave propagation in soft tissue.
Antonio Gomez +3 more
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Changes in left ventricular electromechanical relations during targeted hypothermia
Intensive Care Medicine Experimental, 2020 Background Targeted hypothermia, as used after cardiac arrest, increases electrical and mechanical systolic duration. Differences in duration of electrical and mechanical systole are correlated to ventricular arrhythmias.
Kristin Wisløff-Aase +5 more
doaj +1 more source