- Iatridis, James C. and Setton, Lori A. and Weidenbaum, Mark and Mow, Van C., Determination of a relaxation spectrum to evaluate the viscoelastic behavior of the nucleus pulposus in shear,
American Society of Mechanical Engineers, Bioengineering Division (Publication) BED, vol. 28
pp. 317 - 318 .
(last updated on 2007/04/10)
This study was designed to determine the intrinsic viscoelastic behaviour of NP in torsional shear, and to obtain a relaxation spectrum capable of describing this behaviour. Several relaxation functions based on both discrete and continuous relaxation spectra were investigated to describe the intrinsic viscoelastic effects for the NP. It was observed that the shear behavior of the NP exhibits pronounced viscoelastic effects, as demonstrated by a considerable stress-relaxation effect.
Cartilage;Pressurization;Viscoelasticity;Stress relaxation;Spectrometers;Shear stress;Torque;Mathematical models;Integral equations;