Elastic Wave
Numerical Simulation of Elastic Wave Equation and Analysis of Wave Field Characteristics in 2 D VTI Medium
... With the development of numerical simulation technology and the improve- ment of production practice requirements, the researchers put forward the higher requirements for the precision and computational efficiency of ...
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Elastic Wave Propagation in Composites and Least-squares Damage Localization Technique
... centered at a sensor, with their radii determined by the time of propagation of the wave from the source to the respective sensor. Jeong and Jang (2000) proposed another triangulation method, in which the time ...
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Nondestructive Elastic Wave Tests of Foundation Slab in Office Building
... An elastic wave was nondestructively generated in every second measuring point in the large pit by means of a properly calibrated rubber ended hammer ...
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Frequency domain Elastic wave Simulation Based on the Nonoverlapping Domain Decomposition Method
... new wave simulation technique for the elastic wave equation in the frequency domain based on a no overlapping do- main decomposition algorithm is ...the elastic wave equation are ...the ...
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Anisotropic Imaging Of Tumours Using Elastic Wave Signals
... linear elastic material is characterized by its density and Hooke’s tensor fields, henceforth referred to as elas- tic ...specific elastic materials yields less components, ...as elastic moduli for ...
6
Implementation and computational aspects of a 3D elastic wave modelling by PUFEM
... The outline of the paper is as follows. In Section 2 , the model problem and the used notations are presented. Section 3 is dedicated to the variational formulation and Section 4 presents the PUFEM approximated solution. ...
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A note on resonant frequencies for a system of elastic wave equations
... We present a rather simple proof of the existence of resonant frequencies for the direct scattering problem associated to a system of elastic wave equations with Dirichlet boundary condition. Our approach ...
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Acoustic Emission Pattern Recognition Method Utilizing Elastic Wave Simulation
... simulated elastic wave calculated via the 3D finite-difference time-domain (FDTD) method and the sensor response acquired with the use of the long bar ...
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Higher Order Splitting Method for Elastic Wave Propagation
... Motivated by seismological problems, we have studied a fourth-order split scheme for the elastic wave equation. We split in the spatial directions and obtain locally one-dimensional systems to be solved. We ...
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A new technique for the measurement of elastic wave velocities on jacketted polycrystals at high pressure
... of elastic wave velocities may be obtained from measurements on jacketted polycrystalline specimens of sufficiently high acoustic ...the elastic properties of the polycrystal as a function of ...
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Towards a Mathematical Model for Elastic Wave Propagation in Granular Materials
... effective wave propagating ballistically at compressional velocity c ~ 1000 m/s, and frequency f ~ 70 ...the elastic response of a compressed granular pack- ing is modeled as an assembly of spherical ...
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Elastic wave propagation in confined granular systems
... the elastic limit兲 those authors identified a larger length scale of about 100 diameters in order to recover mac- roscopic elasticity 关38兴; these differences might also be due to the fact that their study ...
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Analysis of long compressional elastic waves in rods of arbitrary cross section and elastic wave fronts in plates and circular rods
... Long waves in elastic rOods of arbitrary cross section are studied by writing a general expansion of the exact solution for three dimensional linear elasticity. The solu[r] ...
200
Elastic Wave Scattering from Multiple Voids (Porosity)
... at least under the dilute concentration limits imposed upon this work; a detailed comparison of values obtained from the ultrasonic measurements with visually determined results is given[r] ...
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Measurement of third-order elastic constants and stress dependent coefficients for steels
... the elastic wave corresponding to the tensile stress, the uniform and isotropic specimens were processed with high precision, the measuring instruments were strictly calibrated, and the temperature of the ...
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A coupled magneto thermo elastic problem in a perfectly conducting elastic half space with thermal relaxation
... In the present paper we consider the magneto-thermo-elastic wave produced Here the Lordby a thermal shock in a perfectly conducting elastic half-space.. Shulman theory of thermoelasticit[r] ...
12
Elastic Metamaterials Making Use of Chirality: A Review
... with elastic wave manipulations such as: elastic metamaterials waveguides, elastic wave super lensing, wave cloaking and vibration insulating [31] to ...
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Short wave instability of co-extruded elastic liquids with matched viscosities.
... less elastic, then long waves are stable, and the behaviour is more compli- ...the elastic fluid. This corresponds to an elastic wave confined in the elastic fluid close to the ...
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Elastic Scattering of Electron by Barium Atom using Distorted Wave Method
... for elastic scattering of e - - Ba scattering at intermediate energies have been ...on elastic scattering of electron by barium have been reported using distorted wave method (DWM), so it was ...
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Electron Impact Elastic Scattering of Strontium Using Distorted Wave Method
... energy elastic scattering with projectile energy of about ...both elastic and in elastic ...atom elastic scattering are useful in X- ray photoelectron spectroscopy (XPS), upper atmosphere ...
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