The Contact of Elastic Regular Wavy Surfaces Revisited

Thermal Contact Resistance of Wavy Surfaces (RESEARCH NOTE)

In this paper, the method of determining thermal contact resistance of wavy surfaces is discussed exactly. For determining the thermal contact resistance of real contacts, a new method has been presented. In this method, assuming a regular sinusoidal surface profile, the real contact area in terms of applied forces has been determined. Then thermal contact resistance has been calculated. Testin...

Elastic Response of Rough Surfaces in Partial Contact

– We model numerically the partial normal contact of two elastic rough surfaces with highly correlated asperities. Facing surfaces are unmated and described as self-affine with a Hurst exponent H . The numerical algorithm is based on Fourier acceleration and allows efficient simulation of very large systems. The force, F , versus contact area, A, characteristics follows the law F ∼ A in accorda...

Simulating Flows Over Wavy Inclined Surfaces

Regular Surfaces and Regular Maps

A regular surface is a closed genus g surface defined as the tubular neighbourhood of the edge graph of a regular map. A regular map is a family of disc type polygons glued together to form a 2-manifold which is flag transitive. The visualization of this highly symmetric surface is an intriguing and challenging problem. Unlike regular maps, regular surfaces can always be visualized as 3D embedd...

A Finite Element Based Elastic-Plastic Model for the Contact of Rough Surfaces

An elastic-plastic model for contacting rough surfaces that is based on accurate Finite Element Analysis (FEA) of an elasticplastic single asperity contact is presented. The plasticity index Ψ is shown to be the main dimensionless parameter that affects the contact of rough surfaces. Below Ψ = 0.6 the contact problem is purely elastic and above Ψ = 8 it is mostly plastic. The mean real contact ...