Transverse and normal interfacial stiffness of solids with randomly rough surfaces
Transverse and normal interfacial stiffness of solids with randomly rough surfaces
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DOI：
10.1088/0953-8984/23/8/085001
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发表时间：
2011-03-02
影响因子：
2.7
通讯作者：
Mueser, M. H.
中科院分区：
文献类型：
--
作者：
Campana, C.;Persson, B. N. J.;Mueser, M. H.
采用理论分析和计算机模拟的方法，计算了具有随机粗糙表面的两接触各向同性固体界面的垂直法向刚度K和平行横向刚度K以及泊松比nu. K-垂直的理论预测与模拟吻合得很好。此外，K-垂直于/K-平行于之比的理论结果为（2 - nu）/（2 - 2 nu），如Mindlin对单个圆形接触区域所预测的。最后，我们比较理论和实验超声数据。
Using a theoretical approach and computer simulations, we calculate the normal stiffness K-perpendicular to and the transverse stiffness K-parallel to of the interface between two contacting isotropic solids with randomly rough surfaces and Poisson ratio nu. The theoretical predictions for K-perpendicular to agree well with the simulations. Moreover, the theoretical result for the ratio K-perpendicular to/K-parallel to is (2 - nu)/(2 -2 nu), as predicted by Mindlin for a single circular contact region. Finally, we compare the theory to experimental ultrasonic data.