Wear model for reciprocating ball-on-flat wear tests
- Autores: M. Esteves, A. Ramalho
- Localización: Proceedings of the VIII Iberian Conference on Tribology: Conference proceedings / Ana Eva Jiménez Ballesta (aut.), Tulia Espinosa Rodríguez (aut.), Noelia Saurín Serrano (aut.), Joaquín Arias Pardilla (aut.), María Dolores Bermúdez Olivares (aut.), 2015, ISBN 978-84-606-8904-1, págs. 203-207
- Idioma: inglés
- Enlaces
-
Resumen
During the design phase of components is very difficult to obtain a reliable extrapolation for the outcome of a wear process and its implications. Regarding this situation, a wear model suitable for sliding wear was designed, allowing to estimate the volume loss on the both sliding surfaces. The current model was created specifically to ball on flat contact applications. A Hertzian normal contact pressure and a friction stress field are used to determine the resulting contact stresses leading to local analysis of the wear process. The quantification and matching wear amount can be established using a model based on the energy dissipated by friction or alternatively a model based on the normal pressure. An experimental validation study was produced for a pair of materials commonly used in mechanical applications, regarding a steel sphere (AISI 52100) against a grey cast iron flat specimen (GJL 200) for a normal load of 10N, 1 Hz frequency and a duration range between 5000 and ...
