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Article

A Mixed Elasto-Hydrodynamic Lubrication Model for Wear Calculation in Artificial Hip Joints

Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, nº 132, 84084 Fisciano, Italy
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Lubricants 2020, 8(7), 72; https://doi.org/10.3390/lubricants8070072
Received: 5 May 2020 / Revised: 24 June 2020 / Accepted: 28 June 2020 / Published: 1 July 2020
The aim of this paper was to propose a novel in silico mixed elasto-hydrodynamic lubrication model with the purpose of wear prediction in Total Hip Replacements (THRs). The model considers the progressive wear contribution in the calculation of the meatus filled by the non-Newtonian synovial fluid. The results were referred to the gait cycle kinematics, calculated by using musculoskeletal multibody software, while the loading was assumed by literature in vivo measurements. The simulations allow evaluating the fluid and the contact pressure fields and the acetabular cup wear over the time. The results were obtained considering a Ultra High Molecular Weight PolyEthylene, UHMWPE, cup and were compared with results from the literature, showing a good agreement in terms of total volume wear of the cup. View Full-Text
Keywords: tribology; total hip replacement (THR); musculoskeletal multibody system; in silico model; mixed elasto-hydrodynamic lubrication (MEHL); wear tribology; total hip replacement (THR); musculoskeletal multibody system; in silico model; mixed elasto-hydrodynamic lubrication (MEHL); wear
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MDPI and ACS Style

Ruggiero, A.; Sicilia, A. A Mixed Elasto-Hydrodynamic Lubrication Model for Wear Calculation in Artificial Hip Joints. Lubricants 2020, 8, 72. https://doi.org/10.3390/lubricants8070072

AMA Style

Ruggiero A, Sicilia A. A Mixed Elasto-Hydrodynamic Lubrication Model for Wear Calculation in Artificial Hip Joints. Lubricants. 2020; 8(7):72. https://doi.org/10.3390/lubricants8070072

Chicago/Turabian Style

Ruggiero, Alessandro, and Alessandro Sicilia. 2020. "A Mixed Elasto-Hydrodynamic Lubrication Model for Wear Calculation in Artificial Hip Joints" Lubricants 8, no. 7: 72. https://doi.org/10.3390/lubricants8070072

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