Interaction of highly nonlinear solitary waves with linear elastic media.
Interaction of highly nonlinear solitary waves with linear elastic media.
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高度非线性孤立波与线性弹性介质的相互作用。
DOI：
10.1103/physreve.83.046606
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
C. Daraio
中科院分区：
文献类型：
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作者：
Jinkyu Yang;C. Silvestro;D. Khatri;L. De Nardo;C. Daraio
本文研究了在粒状晶体中传播的高度非线性孤立波与相邻线弹性介质的相互作用。我们调查的界面动力学的入射波的反射和形成的初级和次级反射波的影响。实验测试进行相关的线性介质的几何形状，材料和质量与反射波的形成和传播。我们比较的实验结果与理论分析的基础上的长波长近似和从离散粒子模型获得的数值预测。实验结果与理论分析和数值模拟相一致。这一初步研究为利用反射孤立波作为新的信息载体对弹性材料系统进行无损评价奠定了基础。
We study the interaction of highly nonlinear solitary waves propagating in granular crystals with an adjacent linear elastic medium. We investigate the effects of interface dynamics on the reflection of incident waves and on the formation of primary and secondary reflected waves. Experimental tests are performed to correlate the linear medium geometry, materials, and mass with the formation and propagation of reflected waves. We compare the experimental results with theoretical analysis based on the long-wavelength approximation and with numerical predictions obtained from discrete particle models. Experimental results are found to be in agreement with theoretical analysis and numerical simulations. This preliminary study establishes the foundation for utilizing reflected solitary waves as novel information carriers in nondestructive evaluation of elastic material systems.