Vergara Lautaro
Departamento de Física, Universidad de Santiago de Chile, Casilla 307, Santiago 2, Chile.
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jun;73(6 Pt 2):066623. doi: 10.1103/PhysRevE.73.066623. Epub 2006 Jun 26.
In granular media, the characterization of the behavior of solitary waves around interfaces is of importance in order to look for more applications of these systems. We study the behavior of solitary waves at both interfaces of a symmetric granular container, a class of systems that has received recent attention because it possesses the feature of energy trapping. Hertzian contact is assumed. We have found that the scattering process is elastic at one interface, while at the other interface it is observed that the transmitted solitary wave has stopped its movement during a time that gets longer when the ratio between masses at the interfaces increases. The origin of this effect can be traced back to the phenomenon of gaps opening, recently observed experimentally.
在颗粒介质中，为了探索这些系统的更多应用，研究孤立波在界面周围的行为特征至关重要。我们研究了对称颗粒容器两个界面处的孤立波行为，这类系统由于具有能量捕获特性，最近受到了关注。假设为赫兹接触。我们发现，在一个界面处散射过程是弹性的，而在另一个界面处，观察到透射的孤立波在一段时间内停止了运动，当界面处质量比增加时，这段时间会变长。这种效应的起源可以追溯到最近通过实验观察到的间隙打开现象。
