Creep indentation of human hip articular cartilage: Comparisons of biphasic finite element/optimization and semi-analytical solutions

K. A. Athanasiou, A. Agarwal, G. Constantinides

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

4 Scopus citations

Abstract

Using the semi-analytical/semi-numerical biphasic creep indentation methodology and a biphasic finite element/optimization procedure with experimental creep data, we obtained three material properties of articular cartilage in eight human hip osteochondral specimens. Close agreement was observed in these properties obtained with the two procedures, even though different boundary conditions are used in the two methods. Furthermore, we used a finite element/optimization procedure on various initial time intervals of the experimental creep curves to determine if it is necessary to use all data points up to equilibrium for successful evaluation of the tissue's material properties. The results suggest that, in the human femoral head, as little as the first 20 minutes of experimental creep may be needed for successful evaluation of the tissue's intrinsic mechanical properties.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Place of PublicationNew York, NY, United States
PublisherPubl by ASME
Pages195-198
Number of pages4
Volume22
ISBN (Print)0791811166
StatePublished - 1992
Externally publishedYes
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: Nov 8 1992Nov 13 1992

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA
Period11/8/9211/13/92

ASJC Scopus subject areas

  • Engineering(all)

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    Athanasiou, K. A., Agarwal, A., & Constantinides, G. (1992). Creep indentation of human hip articular cartilage: Comparisons of biphasic finite element/optimization and semi-analytical solutions. In American Society of Mechanical Engineers, Bioengineering Division (Publication) BED (Vol. 22, pp. 195-198). Publ by ASME.