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Viscoelastic Properties of Human MCL in the Transverse Direction

[+] Author Affiliations
Carlos Bonifasi-Lista, Spencer P. Lake, Michael S. Small, Jeffrey A. Weiss

University of Utah, Salt Lake City, UT

Paper No. IMECE2002-32621, pp. 201-202; 2 pages
doi:10.1115/IMECE2002-32621
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

Ligament viscoelasticity is an important determinant of tissue response to rapid loading and potential for injury, and may also play a role in tissue nutrition via fluid movement during loading/unloading. Because ligaments are anisotropic multiphase structures, it is likely that their viscoelastic response is direction-dependent. Previous efforts to describe ligament viscoelasticity have either reported experimental data without theoretical interpretation (e.g., [1]), or assumed a particular form for the viscoelastic response a priori [2–4]. Small sinusoidal perturbations about an equilibrium strain value allow application of linear viscoelasticity theory for determination of storage modulus (dynamic stiffness) and loss modulus (phase, or damping) as a function of frequency and equilibrium strain level. With these data, one can assess the appropriateness of different viscoelastic and/or poroelastic models to describe time- and rate-dependent constitutive behavior.

Copyright © 2002 by ASME

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