Computational Analysis of Stress Concentration and Wear for Tibial Insert of PS Type Knee Prosthesis under Deep Flexion Motion

Mitsugu Todo, Y. Takahashi, R. Nagamine

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

3-D finite element model of a typical PS type knee prosthesis was constructed using its CAD data with use of a nonlinear spring model and an analytical load data for deep squatting. Stress analysis was then performed by an explicit finite element method under continuous deep flexion motion. It was shown that the equivalent stress on the Post surface rapidly increases due to the Post/Cam contact. Severe stress concentration is also generated on the surface. This kind of stress concentration may cause damage and failure of the Post. Wear analysis was also performed based on the results of the stress analysis and the classical wear theory. Wear depth was then estimated and the analytical result suggests that the developed FE model is useful for risk assessment of knee prostheses.

Original languageEnglish
Title of host publication13th International Conference on Biomedical Engineering - ICBME 2008
Pages1559-1563
Number of pages5
DOIs
Publication statusPublished - Dec 1 2009
Event13th International Conference on Biomedical Engineering, ICBME 2008 - , Singapore
Duration: Dec 3 2008Dec 6 2008

Publication series

NameIFMBE Proceedings
Volume23
ISSN (Print)1680-0737

Other

Other13th International Conference on Biomedical Engineering, ICBME 2008
CountrySingapore
Period12/3/0812/6/08

Fingerprint

Knee prostheses
Stress concentration
Wear of materials
Stress analysis
Cams
Risk assessment
Loads (forces)
Computer aided design
Finite element method

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

Cite this

Todo, M., Takahashi, Y., & Nagamine, R. (2009). Computational Analysis of Stress Concentration and Wear for Tibial Insert of PS Type Knee Prosthesis under Deep Flexion Motion. In 13th International Conference on Biomedical Engineering - ICBME 2008 (pp. 1559-1563). (IFMBE Proceedings; Vol. 23). https://doi.org/10.1007/978-3-540-92841-6_386

Computational Analysis of Stress Concentration and Wear for Tibial Insert of PS Type Knee Prosthesis under Deep Flexion Motion. / Todo, Mitsugu; Takahashi, Y.; Nagamine, R.

13th International Conference on Biomedical Engineering - ICBME 2008. 2009. p. 1559-1563 (IFMBE Proceedings; Vol. 23).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Todo, M, Takahashi, Y & Nagamine, R 2009, Computational Analysis of Stress Concentration and Wear for Tibial Insert of PS Type Knee Prosthesis under Deep Flexion Motion. in 13th International Conference on Biomedical Engineering - ICBME 2008. IFMBE Proceedings, vol. 23, pp. 1559-1563, 13th International Conference on Biomedical Engineering, ICBME 2008, Singapore, 12/3/08. https://doi.org/10.1007/978-3-540-92841-6_386
Todo M, Takahashi Y, Nagamine R. Computational Analysis of Stress Concentration and Wear for Tibial Insert of PS Type Knee Prosthesis under Deep Flexion Motion. In 13th International Conference on Biomedical Engineering - ICBME 2008. 2009. p. 1559-1563. (IFMBE Proceedings). https://doi.org/10.1007/978-3-540-92841-6_386
Todo, Mitsugu ; Takahashi, Y. ; Nagamine, R. / Computational Analysis of Stress Concentration and Wear for Tibial Insert of PS Type Knee Prosthesis under Deep Flexion Motion. 13th International Conference on Biomedical Engineering - ICBME 2008. 2009. pp. 1559-1563 (IFMBE Proceedings).
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