Numerical modeling of elastic waves in micropolar plates and shells taking into account inertial characteristics
Sign Up to like & getrecommendations! Published in 2018 at "Continuum Mechanics and Thermodynamics"
DOI: 10.1007/s00161-018-0725-8
Abstract: Mathematical models of micropolar plates and shells are considered within the framework of the approximation approach. The governing equations of the theories are written in a thermodynamically consistent form of the conservation laws. This ensures… read more here.
Keywords: elastic waves; modeling elastic; numerical modeling; plates shells ... See more keywords
Diffraction of Elastic Waves by a Sphere in the Semi-Bounded Region
Sign Up to like & getrecommendations! Published in 2019 at "Cybernetics and Systems Analysis"
DOI: 10.1007/s10559-019-00146-3
Abstract: The author considers scattering of plane elastic waves by a rigid sphere near a plane rigid boundary, which causes multiply re-reflected dilation and shear waves and generates strong oscillations of the wave field. The problem… read more here.
Keywords: diffraction elastic; semi bounded; waves sphere; sphere semi ... See more keywords
Influence of viscous damping and elastic waves on energy dissipation during impacts
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2019.01.036
Abstract: Abstract For impacts on plane surfaces (plates), the coefficient of restitution or more precisely, the energy dissipation due to elastic waves (Rayleigh, longitudinal, transverse and flexural waves) on the one hand and due to viscoelastic… read more here.
Keywords: model; elastic waves; viscous damping; energy dissipation ... See more keywords
One-dimensional propagation of longitudinal elastic waves through functionally graded materials
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Solids and Structures"
DOI: 10.1016/j.ijsolstr.2018.03.017
Abstract: Abstract The one-dimensional propagation of longitudinal elastic waves along the thickness of a plate made of functionally graded materials excited by a harmonic force is reported in this article. The material properties of the plate… read more here.
Keywords: propagation; elastic waves; propagation longitudinal; longitudinal elastic ... See more keywords
Generation of narrowband elastic waves with a fiber laser and its application to the imaging of defects in a plate
Sign Up to like & getrecommendations! Published in 2017 at "Ultrasonics"
DOI: 10.1016/j.ultras.2017.01.016
Abstract: &NA; Pulsed laser equipment can be used to generate elastic waves through the instantaneous reaction of thermal expansion or ablation of the material; however, we cannot control the waveform generated by the laser in the… read more here.
Keywords: elastic waves; laser; generation narrowband; fiber laser ... See more keywords
Isolated detection of elastic waves driven by the momentum of light
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-05706-3
Abstract: Electromagnetic momentum carried by light is observable through the mechanical effects radiation pressure exerts on illuminated objects. Momentum conversion from electromagnetic fields to elastic waves within a solid object proceeds through a string of electrodynamic… read more here.
Keywords: elastic waves; momentum light; dielectric mirror; momentum ... See more keywords
Metamaterials for simultaneous acoustic and elastic bandgaps
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-94053-3
Abstract: In this work, we present a single low-profile metamaterial that provides bandgaps of acoustic and elastic waves at the same time. This was done by ensuring impedance mismatch in two different domains, the fluid domain… read more here.
Keywords: elastic bandgaps; elastic waves; simultaneous acoustic; metamaterials simultaneous ... See more keywords
Phase properties of elastic waves in systems constituted of adsorbed diatomic molecules on the (001) surface of a simple cubic crystal
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5007049
Abstract: A Green's function-based numerical method is developed to calculate the phase of scattered elastic waves in a harmonic model of diatomic molecules adsorbed on the (001) surface of a simple cubic crystal. The phase properties… read more here.
Keywords: phase; elastic waves; 001 surface; surface ... See more keywords
Active localization of wave propagation in elastic beams using periodic placement of piezoelectric actuator/sensor pairs
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5038660
Abstract: A novel strategy is proposed to investigate the active localization of elastic waves in beams with periodically placed piezoelectric actuator/sensor pairs under random feedback control gains. The randomly disordered active stiffness is obtained and periodically… read more here.
Keywords: actuator sensor; elastic waves; piezoelectric actuator; sensor pairs ... See more keywords
One-way transmission and mode conversion of elastic waves by a hybrid phononic crystal structure
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Physics"
DOI: 10.1063/1.5085800
Abstract: We study the one-way transmission and mode conversion of elastic waves by a hybrid phononic-crystal structure that consists of two mutually perpendicular phononic-crystal waveguides connected by a resonant cavity. Based on the mode matching mechanism… read more here.
Keywords: phononic crystal; mode; elastic waves; one way ... See more keywords
Some characteristics of elastic waves in a piezoelectric semiconductor plate
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Physics"
DOI: 10.1063/1.5116662
Abstract: Devices based on piezoelectric semiconductors (PSCs) have recently received particular attention due to their wide bandgap where strain energy band engineering under both static and time-harmonic deformations is the key. In this paper, we investigate… read more here.
Keywords: elastic waves; characteristics elastic; displacements stresses; plate ... See more keywords