Results 1 to 10 of about 201,558 (191)

Determinants of Human Corneal Mechanical Wave Dispersion for In Vivo Optical Coherence Elastography. [PDF]

Transl Vis Sci Technol
To characterize frequency-dependent wave speed dispersion in the human cornea using microliter air-pulse optical coherence elastography (OCE), and to evaluate the applicability of Lamb wave theory for determining corneal elastic modulus using high-frequency symmetric (S0) and anti-symmetric (A0) guided waves in cornea.Wave speed dispersion analysis for
Duvvuri C, Singh M, Lan G, Aglyamov SR, Larin KV, Twa MD.   +5 more
europepmc   +3 more sources

Non-reciprocal elastic wave propagation in spatiotemporal periodic structures

New Journal of Physics, 2016
We study longitudinal and transverse wave propagation in beams with elastic properties that are periodically varying in space and time. Spatiotemporal modulation of the elastic properties breaks mechanical reciprocity and induces one-way propagation.
G Trainiti, M Ruzzene
doaj   +2 more sources

Dispersion Analysis of Plane Wave Propagation in Lattice-Based Mechanical Metamaterial for Vibration Suppression

Aerospace
Phononic crystals based on lattice structures provide important wave dispersion characteristics as band structures, showing excellent compatibility with additive manufacturing.
Natsuki Tsushima, Yuta Hayashi, Tomohiro Yokozeki   +2 more
doaj   +2 more sources

Analytical wave solutions in thermoelastic media with temperature-dependent properties via IMETF method [PDF]

Scientific Reports
This study delivers an in-depth analytical investigation of exact wave solutions derived within the context of the Three-Phase-Lag (3PHL) generalized thermoelasticity model, explicitly incorporating the temperature dependence of material properties.
Mohamed F. Ismail, Hamdy M. Ahmed, Soha Safwat, M. Elsaid Ramadan, Nesreen Sirelkhtam Elmki Abdalla, Mahmoud Soliman   +5 more
doaj   +2 more sources

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
doaj   +1 more source

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, Jianbo Zhang, Yan Lyu, Guorong Song, Cunfu He   +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, Witold BUŻANTOWICZ, Paweł BARANOWSKI   +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, J.M.C. Dos Santos, E.J.P. Miranda, Jr.   +2 more
doaj   +1 more source

Myocardial electrophysiological and mechanical changes caused by moderate hypothermia—A clinical study

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, Helge Skulstad, Kristina Haugaa, Per Snorre Lingaas, Jan Otto Beitnes, Per Steinar Halvorsen, Andreas Espinoza   +6 more
doaj   +1 more source

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
doaj   +1 more source