弹性固体具有分形粗糙表面的法向接触刚度。
Normal contact stiffness of elastic solids with fractal rough surfaces.
机构信息
Berlin University of Technology, 10623 Berlin, Germany.
出版信息
Phys Rev Lett. 2012 Mar 9;108(10):104301. doi: 10.1103/PhysRevLett.108.104301. Epub 2012 Mar 5.
Abstract
Using the boundary element method, we calculate the normal interfacial stiffness and constriction resistance of two elastic bodies with randomly rough surfaces and varying fractal dimensions. The contact stiffness as a function of the applied normal force can be approximated by a power law, with an exponent varying from 0.51 to 0.77 for fractal dimensions varying from 2 to 3.
摘要
利用边界元法，我们计算了两个具有随机粗糙表面和不同分形维数的弹性体的法向界面刚度和收缩阻力。接触刚度与法向力的关系可以用幂律近似，对于分形维数从 2 到 3 的变化，指数从 0.51 到 0.77 变化。
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