Elastic Wave Propagation
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. The dispersion curve applied in guided wave propagation in prismatic rods.
Abstract The early detection of failures in structures is a subject of great interest in engineering; several of these techniques are linked with the elastic wave propagation, using guided waves is one of these alternatives. Several structures of interest in engineering are laminar arrangements; the wave propagation in this type of structures depends not on
Lat. Am. j. solids struct.. Publicado em: 02/07/2018
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2. Laboratory study of dynamic mechanical characteristic of granite subjected to confining pressure and cyclic blast loading
Abstract To investigate the deformation characteristic of deep rock under cyclic blasting, the static-dynamic loading experimental equipment was set up. The dynamic strain gauges and high-speed (HS) camera were adopted to obtain strain field and the crack propagation of rock under confining pressure of 0 MPa, 5 MPa and 10 MPa. Under the one-time loading fro
Lat. Am. j. solids struct.. Publicado em: 28/06/2018
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3. Band Structure in Carbon Nanostructure Phononic Crystals
We investigate the band structure of elastic waves propagating in carbon nanostructure phononic crystals with square, rectangular, triangular, honeycomb and Kagomé lattices. We also study the influence of carbon nanostructure cross section geometry - circular, hollow circular, square and rotated square with a 45° angle of rotation with respect to the x and
Mat. Res.. Publicado em: 27/11/2017
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4. Complete Band Gaps in Nano-Piezoelectric Phononic Crystals
We study the band structure of elastic waves propagating in a nano-piezoelectric phononic crystal consisting of a polymeric matrix reinforced by BaTiO3 inclusions in square, rectangular, triangular, honeycomb and Kagomé lattices. We also investigate the influence of inclusion cross section geometry - circular, hollow circular, square and rotated square with
Mat. Res.. Publicado em: 30/10/2017
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5. Experimental Studies of Dynamic Behavior of TiNi Alloy Thin Circular Plate subjected to Transversal Impact
Abstract Here goes the abstract. For instance, one can write that this work The experimental research of thin circular plate of pseudo-elastic TiNi alloy under fixed supports and transversal impact loading was conducted through using the modified apparatus of Split Hopkinson Pressure Bar. The experiment results of pseudo-elastic TiNi alloy was compared with
Lat. Am. j. solids struct.. Publicado em: 2016-12
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6. Dispersion of Love wave in an isotropic layer sandwiched between orthotropic and prestressed inhomogeneous half-spaces
Abstract An in-depth study has been carried out for the dispersion of Love waves in an isotropic elastic layer sandwiched between orthotropic and prestressed inhomogeneous elastic half-spaces. The inhomogeneities in density and rigidity of the lower half-space are space dependent and an arbitrary function of depth. Simple mathematical techniques are used to
Lat. Am. j. solids struct.. Publicado em: 2015-10
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7. A comparative study on propagation of elastic waves in random particulate composites
This paper aims to conduct a comparative study on four different models of effective field and effective medium for modeling propagation of plane elastic waves through the composites containing spherical particles with random distribution. Effective elastic properties along with the normalized phase velocity and attenuation of the average wave was numericall
Lat. Am. j. solids struct.. Publicado em: 2014
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8. Shear wave propagation in piezoelectric-piezoelectric composite layered structure
The propagation behavior of shear wave in piezoelectric composite structure is investigated by two layer model presented in this approach. The composite structure comprises of piezoelectric layers of two different materials bonded alternatively. Dispersion equations are derived for propagation along the direction normal to the layering and in direction of la
Lat. Am. j. solids struct.. Publicado em: 2014
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9. Modeling and analysis of waves in a heat conducting thermo-elastic plate of elliptical shape
Wave propagation in heat conducting thermo elastic plate of elliptical cross-section is studied using the Fourier expansion collocation method based on Suhubi's generalized theory. The equations of motion based on two-dimensional theory of elasticity is applied under the plane strain assumption of generalized thermo elastic plate of elliptical cross-sections
Lat. Am. j. solids struct.. Publicado em: 2014
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10. Propagation of plane waves at the interface of an elastic solid half-space and a microstretch thermoelastic diffusion solid half-space
The problem of reflection and refraction phenomenon due to plane waves incident obliquely at a plane interface between uniform elastic solid half-space and microstretch thermoelastic diffusion solid half-space has been studied. It is found that the amplitude ratios of various reflected and refracted waves are functions of angle of incidence, frequency of inc
Lat. Am. j. solids struct.. Publicado em: 2013-11
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11. Elastic wave propagation in nano-composites with random distribution of spherical inclusions
In the present study, efforts have been made to theoretically study the diffraction of plane harmonic compressional waves by a spherical nano-inclusion based on the Gurtin-Murdoch surface/interface elasticity theory in which the interface between the nano-inclusion and the matrix is considered as the material surface which has their own mechanical properties
Lat. Am. j. solids struct.. Publicado em: 2013-07
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12. Modelagem e simulação da propagação de ondas em barras não homogêneas envolvendo materiais elásticos não lineares. / Numerical simulation of the dynamical response of a nonlinear elástic rod composed by two materials.
O objetivo deste trabalho é tratar da simulação do fenômeno de propagação de ondas em uma haste heterogênea elástico, composta por dois materiais distintos (um linear e um não-linear), cada um deles com a sua própria velocidade de propagação da onda. Na interface entre estes materiais existe uma descontinuidade, um choque estacionário, devido ao
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012