Theoretical simulation of temperature elevations in a joint wear simulator during rotations

Alireza Chamani, Hitesh P. Mehta, Martin K. McDermott, Manel Djeffal, Gaurav Nayyar, Dinesh V. Patwardhan, Anilchandra Attaluri, L. D.Timmie Topoleski, Liang Zhu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The objective of this study is to develop a theoretical model to simulate temperature fields in a joint simulator for various bearing conditions using finite element analyses. The frictional heat generation rate at the interface between a moving pin and a stationary base is modeled as a boundary heat source. Both the heat source and the pin are rotating on the base. We are able to conduct a theoretical study to show the feasibility of using the COMSOL software package to simulate heat transfer in a domain with moving components and a moving boundary source term. The finite element model for temperature changes agrees in general trends with experimental data. Heat conduction occurs primarily in the highly conductive base component, and high temperature elevation is confined to the vicinity of the interface in the pin. Thirty rotations of a polyethylene pin on a cobalt-chrome base for 60 s generate more than 2.26 °C in the temperature elevation from its initial temperature of 25 C at the interface in a baseline model with a rotation frequency of 0.5 Hz. A higher heat generation rate is the direct result of a faster rotation frequency associated with intensity of exercise, and it results in doubling the temperature elevations when the frequency is increased by100%. Temperature elevations of more than 7.5 °C occur at the interface when the friction force is tripled from that in the baseline model. The theoretical modeling approach developed in this study can be used in the future to test different materials, different material compositions, and different heat generation rates at the interface under various body and environmental conditions.

Original languageEnglish (US)
Article number021027
JournalJournal of Biomechanical Engineering
Volume136
Issue number2
DOIs
StatePublished - Feb 1 2014

Fingerprint

Hot Temperature
Joints
Simulators
Wear of materials
Temperature
Heat generation
Bearings (structural)
Theoretical Models
Finite Element Analysis
Friction
Heat conduction
Software packages
Polyethylene
Cobalt
Polyethylenes
Temperature distribution
Heat transfer
Software
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Physiology (medical)

Cite this

Chamani, A., Mehta, H. P., McDermott, M. K., Djeffal, M., Nayyar, G., Patwardhan, D. V., ... Zhu, L. (2014). Theoretical simulation of temperature elevations in a joint wear simulator during rotations. Journal of Biomechanical Engineering, 136(2), [021027]. https://doi.org/10.1115/1.4026158
Chamani, Alireza ; Mehta, Hitesh P. ; McDermott, Martin K. ; Djeffal, Manel ; Nayyar, Gaurav ; Patwardhan, Dinesh V. ; Attaluri, Anilchandra ; Topoleski, L. D.Timmie ; Zhu, Liang. / Theoretical simulation of temperature elevations in a joint wear simulator during rotations. In: Journal of Biomechanical Engineering. 2014 ; Vol. 136, No. 2.
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abstract = "The objective of this study is to develop a theoretical model to simulate temperature fields in a joint simulator for various bearing conditions using finite element analyses. The frictional heat generation rate at the interface between a moving pin and a stationary base is modeled as a boundary heat source. Both the heat source and the pin are rotating on the base. We are able to conduct a theoretical study to show the feasibility of using the COMSOL software package to simulate heat transfer in a domain with moving components and a moving boundary source term. The finite element model for temperature changes agrees in general trends with experimental data. Heat conduction occurs primarily in the highly conductive base component, and high temperature elevation is confined to the vicinity of the interface in the pin. Thirty rotations of a polyethylene pin on a cobalt-chrome base for 60 s generate more than 2.26 °C in the temperature elevation from its initial temperature of 25 C at the interface in a baseline model with a rotation frequency of 0.5 Hz. A higher heat generation rate is the direct result of a faster rotation frequency associated with intensity of exercise, and it results in doubling the temperature elevations when the frequency is increased by100{\%}. Temperature elevations of more than 7.5 °C occur at the interface when the friction force is tripled from that in the baseline model. The theoretical modeling approach developed in this study can be used in the future to test different materials, different material compositions, and different heat generation rates at the interface under various body and environmental conditions.",
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Chamani, A, Mehta, HP, McDermott, MK, Djeffal, M, Nayyar, G, Patwardhan, DV, Attaluri, A, Topoleski, LDT & Zhu, L 2014, 'Theoretical simulation of temperature elevations in a joint wear simulator during rotations', Journal of Biomechanical Engineering, vol. 136, no. 2, 021027. https://doi.org/10.1115/1.4026158

Theoretical simulation of temperature elevations in a joint wear simulator during rotations. / Chamani, Alireza; Mehta, Hitesh P.; McDermott, Martin K.; Djeffal, Manel; Nayyar, Gaurav; Patwardhan, Dinesh V.; Attaluri, Anilchandra; Topoleski, L. D.Timmie; Zhu, Liang.

In: Journal of Biomechanical Engineering, Vol. 136, No. 2, 021027, 01.02.2014.

Research output: Contribution to journalArticle

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Chamani A, Mehta HP, McDermott MK, Djeffal M, Nayyar G, Patwardhan DV et al. Theoretical simulation of temperature elevations in a joint wear simulator during rotations. Journal of Biomechanical Engineering. 2014 Feb 1;136(2). 021027. https://doi.org/10.1115/1.4026158