Nonlinear ligament viscoelasticity

P. Provenzano, R. Lakes, T. Keenan, R. Vanderby

Research output: Contribution to journalArticlepeer-review

191 Scopus citations


An attempt was made to consider two viscoelastic properties: the increase in tissue deformation over time with a constant load (creep) and the decrease in load with time at a constant tissue elongation (stress relaxation). The hypothesis was that nonlinear viscoelasticity of ligament requires a description more general than the separable quasilinear viscoeleasticity (QLV) formulation commonly used. This hypothesis was tested via creep and relaxation experiments performed at multiple levels in the physiologic region of recoverable loading.

Original languageEnglish (US)
Pages (from-to)908-914
Number of pages7
JournalAnnals of Biomedical Engineering
Issue number10
StatePublished - Dec 31 2001


  • Creep, ligament
  • Quasilinear viscoelasticity (QLV)
  • Stress relaxation

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