... mechanical contact polymers resins rolling friction stick-slip rolling contact fatigue epoxy resin two disk machine design of experiments Rolling contact fatigue (RCF) is a damage process that occurs under the repeated action of a Hertzian contact. This kind of contact appears in rolling...

... in an epoxy resin, a reasonable transposition is possible. The disk transparency makes it possible to quantify the cracks growth and to propose original 3D photographs of the cracks. The crack shape is very close to an ellipse arc. The cracks initiate behind the contact because it is the tensile region, Fig...