[PDF] Top 20 Wave propagation in granular materials

... Simulations with a sinusoidal input agreed well with the experiments provided the particle/particle interaction model was realistic. The simulated pressure signals were qualitatively similar to the ex- perimental traces ... See full document

... ular materials are optically opaque, the photoelastic tech- nique becomes difficult to ...through granular beds under confined stress have been recently deviced to understand the elastic response of ... See full document

... geneous materials for three types of materials - layered composites, particulate composites and granular ...layered materials, the simulations agreed with experimental observations of Zhuang ... See full document

... in granular materials has a large importance in various ...shock-wave propagation for the defense industry [1] requires models for the response of different soils under compression at a wide ... See full document

... of granular materials under confining pressure can be extremely nonlinear compared to continuum elastic ...sound propagation in powder confined by an external stress are the effective medium theory ... See full document

... Mechanical wave propagation (including diffraction, scattering, and dispersion) Abstract – Granular materials are inherently heterogeneous, leading to challenges in formulating accurate models ... See full document

... porous materials assuming Forchheimer’s filtration ...the propagation of a moderate amplitude acoustic pulse in a rigid porous material has been studied, assuming Forchheimer’s correction to Darcy’s law and ... See full document

... Care must be taken when installing the filters in the polar- iscope, so that their orientation is correct. A simple check for a darkfield (lightfield) polariscope is to place them face-to-face and rotate one polarizer ... See full document

... surface of the solid is homogeneous, i.e. the adsorption energy is constant over all sites of the surface; ii) adsorption is localized, i.e. the molecules are adsorbed at definite localized sites; iii) each site can ... See full document

... sound propagation, via the increase in contact area at the strongest ...a granular packing was ...a granular context opens new horizons for investigating mesoscale phenomena within a granular ... See full document

... such materials in the field of biomedecine and biotechnology range from prepara-tion of novel antibact- erial, cyclotonic and drug delivery agents to catalysis and materials science ... See full document

... during wave propagation significant extension of pulse duration may appear as a result of the viscoelastic nature, the ball diameter is expected to be as small as ...examining wave superposition in ... See full document

... Abstract. We study the effect of initial stress on the propagation of Rayleigh waves in a granular medium under incremental thermal stresses. We also obtain the frequency equa- tion, in the form of a ... See full document

... The relative error of the combustion wave propagation velocity was 0.24%. Using implicit scheme and more time steps would reduce the error, but this is not required in this work. Figure-1 (a) shows the ... See full document

... traveling wave propagating backwards and forwards through the finite granular ...as propagation bands), which have been observed in a two-sphere experimental system ... See full document

... Abstract—Within the framework of the finite-difference time-domain (FDTD) and the weighted Laguerre polynomials (WLPs), we derive an effective update equation of the electromagnetic in the dispersive media by introducing ... See full document

... community structure of force-chain networks is related to sig- nal propagation. As the example shown in Fig. 5(a) indicates, we find that z, which we measure over a range of size scales as- sociated with ... See full document

... Abstract: Ground response to seismic action is a prime concern in geotechnical earthquake engineering. The estimation of this response to earthquakes is therefore a very essential phase of the design or retrofit of a ... See full document

... 2D granular crystals, including the redistribution of energy in a square lattice with one or more interstitials [125, ...solitary wave propagation through ordered branching structures [117, 118, 127, ... See full document

... the granular system, when two defects are placed along the same row of spheres, parallel to the impacted ...solitary wave interacts with the first defect, two solitary waves propagate towards the second ... See full document