Analytic Solutions and Digital Features for Two Contact Rough Surfaces
Applying GW model simple exponential probability density to approximate the Gaussian one is not explicit for some cases. Some practical closed form analytic solutions were derived for the contact load, contact area and contact spot number for both GW elastic contact model and CEB elastic-plastic contact model by the generalized exponential probability density fitting the Gaussian one.
Zhu Zhilin & Patrick Wang
H. L. Tian et al., "Analytic Solutions and Digital Features for Two Contact Rough Surfaces", Applied Mechanics and Materials, Vols. 40-41, pp. 372-380, 2011