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Viscoelastic properties of the cervical spinal ligaments under fast strain-rate deformations.

Publication ,  Journal Article
Lucas, SR; Bass, CR; Salzar, RS; Oyen, ML; Planchak, C; Ziemba, A; Shender, BS; Paskoff, G
Published in: Acta biomaterialia
January 2008

The mechanical response of ligaments under fast strain-rate deformations is a necessary input into computational models that are used for injury assessment. However, this information frequently is not available for the ligaments that are routinely injured in fast-rate loading scenarios. In the current study, experiments were conducted at fast strain rates for the cervical spinal ligaments: the anterior longitudinal ligament, the posterior longitudinal ligament and the ligamentum flavum. Bone-ligament-bone complexes at three spine levels were harvested for mechanical testing. Displacement-controlled sub-failure uniaxial tensile tests were performed in both load-relaxation and sinusoidal conditions. A nonlinear (separable) viscoelastic model was used to examine the experimental data. An unexpected result of the modeling was that the instantaneous elastic functions could be approximated as linear for these strain rates. A five-parameter model was sufficient to characterize the ligament viscoelastic responses and had good predictive capacity under different applied loading conditions.

Duke Scholars

Published In

Acta biomaterialia

DOI

EISSN

1878-7568

ISSN

1742-7061

Publication Date

January 2008

Volume

4

Issue

1

Start / End Page

117 / 125

Related Subject Headings

  • Time Factors
  • Stress, Mechanical
  • Middle Aged
  • Male
  • Longitudinal Ligaments
  • Humans
  • Female
  • Elasticity
  • Cervical Vertebrae
  • Biomedical Engineering
 

Citation

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Lucas, S. R., Bass, C. R., Salzar, R. S., Oyen, M. L., Planchak, C., Ziemba, A., … Paskoff, G. (2008). Viscoelastic properties of the cervical spinal ligaments under fast strain-rate deformations. Acta Biomaterialia, 4(1), 117–125. https://doi.org/10.1016/j.actbio.2007.08.003
Lucas, Scott R., Cameron R. Bass, Robert S. Salzar, Michelle L. Oyen, Chris Planchak, Adam Ziemba, Barry S. Shender, and Glenn Paskoff. “Viscoelastic properties of the cervical spinal ligaments under fast strain-rate deformations.Acta Biomaterialia 4, no. 1 (January 2008): 117–25. https://doi.org/10.1016/j.actbio.2007.08.003.
Lucas SR, Bass CR, Salzar RS, Oyen ML, Planchak C, Ziemba A, et al. Viscoelastic properties of the cervical spinal ligaments under fast strain-rate deformations. Acta biomaterialia. 2008 Jan;4(1):117–25.
Lucas, Scott R., et al. “Viscoelastic properties of the cervical spinal ligaments under fast strain-rate deformations.Acta Biomaterialia, vol. 4, no. 1, Jan. 2008, pp. 117–25. Epmc, doi:10.1016/j.actbio.2007.08.003.
Lucas SR, Bass CR, Salzar RS, Oyen ML, Planchak C, Ziemba A, Shender BS, Paskoff G. Viscoelastic properties of the cervical spinal ligaments under fast strain-rate deformations. Acta biomaterialia. 2008 Jan;4(1):117–125.
Journal cover image

Published In

Acta biomaterialia

DOI

EISSN

1878-7568

ISSN

1742-7061

Publication Date

January 2008

Volume

4

Issue

1

Start / End Page

117 / 125

Related Subject Headings

  • Time Factors
  • Stress, Mechanical
  • Middle Aged
  • Male
  • Longitudinal Ligaments
  • Humans
  • Female
  • Elasticity
  • Cervical Vertebrae
  • Biomedical Engineering