In-vitro tribological study and submodeling finite element technique in analyzing wear of zirconia toughened alumina against alumina with bio-lubricants for hip implants

•Tribological study of ZTA against alumina was investigated for hip implants.•Using submodeling finite element approach, cumulative linear and volumetric wear were estimated.•Sesame oil bio-lubricant showed better wear coefficient for higher loads.•Overall minimum cumulative linear and volumetric we...

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Bibliographic Details
Published in:Medical engineering & physics 2021-12, Vol.98, p.83-90
Main Authors: Shankar, S., Nithyaprakash, R., Abbas, G., Naveen kumar, R., Pramanik, Alokesh, Basak, Animesh Kumar, Prakash, Chander
Format: Article
Language:English
Subjects:
Aluminum Oxide
Bio-lubricant
Finite Element Analysis
Hip implant
Hip Prosthesis
Humans
Lubricants
Materials Testing
Submodeling
Wear
Zirconia toughened alumina
Zirconium
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Summary:•Tribological study of ZTA against alumina was investigated for hip implants.•Using submodeling finite element approach, cumulative linear and volumetric wear were estimated.•Sesame oil bio-lubricant showed better wear coefficient for higher loads.•Overall minimum cumulative linear and volumetric wear was obtained for ringer's solution. Tribological study of zirconia toughened alumina against alumina is investigated using ball-on-disk tribometer with different bio-lubricants. Friction and wear coefficients are estimated for these bio-lubricants under four different loading conditions which are equivalent to regular and risky human gait activities. Experiments are carried out for a total sliding distance of 10 km with each bio-lubricant to estimate its friction and wear coefficients. Using submodeling finite element approach, cumulative linear and volumetric wear is estimated with the help of contact pressure. The sesame oil bio-lubricant showed better wear coefficient for risky gait activities and Ringer's solution exhibited minimum wear coefficient for normal walking gait activity. Overall minimum cumulative linear and volumetric wear for 2 million cycles was obtained for Ringer's solution.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2021.11.001