Fretting Wear of Coated Surfaces Under Gross Slip Conditions

Blade-disk contact within high pressure compressor, is a high temperature fretting contact zone submitted to high stress levels. Therefore, it is important to estimate the various damages encountered in this area in order to correctly predict the lifetime of the parts. Coatings are used in order to improve the strength of the parts. In the framework of Innolub project, this study aims at developing a numerical model of coated contact accounting for wear and temperature. The objective is to estimate the kinetics of wear, to simulate worn surfaces and to allow the manufacturer to produce analyses of design with worn surfaces using a fast, efficient and reliable method of calculation.