Polymer Dynamics as a Mechanistic Model for the Flow-Independent Viscoelasticity of Cartilage

David P Fyhrie, J. R. Barone

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

The initial, rapid, flow independent, apparent stress relaxation of articular cartilage disks deformed by unconfined compressive displacement is shown to be consistent with the theory of polymer dynamics. A relaxation function for polymers based upon a mechanistic model of molecular interaction (reptation) appropriately approximated early, flow independent relaxation of stress. It is argued that the theory of polymer dynamics, with its reliance on mechanistic models of molecular interaction, is an appropriate technique for application to and the understanding of rapid, flow independent, stress relaxation in cartilage.

Original languageEnglish (US)
Pages (from-to)578-584
Number of pages7
JournalJournal of Biomechanical Engineering
Volume125
Issue number5
DOIs
StatePublished - Oct 2003
Externally publishedYes

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biophysics

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