A comparative study of wear laws for soft-on-hard hip implants using a mathematical wear model

Autor:	F. Di Puccio, Lorenza Mattei, Enrico Ciulli
Rok vydání:	2013
Předmět:	Cross shear Materials science Mechanics of Materials Mechanical Engineering Law Surfaces and Interfaces Sensitivity (control systems) Kinematics Hip replacement (animal) Surfaces Coatings and Films
Zdroj:	Tribology International. 63:66-77
ISSN:	0301-679X
DOI:	10.1016/j.triboint.2012.03.002
Popis:	Wear of UHMWPE acetabular components is the most serious threat to the long-term success of hip replacements. Consequently numerical and experimental wear simulations are of great interest. The present study proposes a mathematical wear model and compares the most recent wear laws, based on the so-called cross-shear (CS) effect. Simulations highlighted the variability of wear predictions with the wear factors/laws. Moreover a sensitivity analysis underlined that the kinematic conditions affect volumetric/linear wear more than the loading ones. This study confirms the importance of the CS in wear predictions even if some critical issues are still open, requiring further investigations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d81e81c67351c32ecd0a1720ce7c472d https://doi.org/10.1016/j.triboint.2012.03.002 Zobrazit plný text záznamu Full Text from ScienceDirect