Numerical contact analysis of transversely isotropic coatings: A cylinder within a circumferential groove

The contact characteristics of transversely isotropic coatings are investig ated for a cylinder within a circumferential groove using a two-dimensional finite element model. With the model, contact behavior is evaluated at mor e than 400 operating conditions by varying coating material, coating thickn ess, normal load, and cylinder/groove radii. Based on the finite element re sults, numerical expressions are derived for the maximum surface pressure, contact length, and approach distance as a function of a transversely isotr opic coating parameter, zeta, The importance of these expressions, as relat ed to design and the selection of materials for reducing wear in contacting surfaces, is subsequently discussed.