Title :
Experimental and finite element evaluation of bovine lumbar vertebral body stiffness
Author :
Sanders, M.M. ; Dost, S. ; Overton, T.R.
Author_Institution :
Dept. of Mech. Eng., Victoria Univ., BC, Canada
Abstract :
Stiffness predictions from finite element (FEM) models are compared to measured values for three bovine vertebral bodies in compression. Young´s modulus for trabecular bone was calculated using the measured apparent density and strain rate. Using this modulus, FEM models predicted a stiffness higher than the experimental values. The FEM models have a strong dependence on cortical thickness, yet a precise measurement of thickness was not possible
Keywords :
Young´s modulus; biomechanics; bone; elasticity; finite element analysis; physiological models; apparent density; bovine lumbar vertebral body stiffness; cortical thickness; finite element evaluation; precise thickness measurement; stiffness predictions; strain rate; trabecular bone; Bovine; Cancellous bone; Density measurement; Finite element methods; Material properties; Predictive models; Solid modeling; Strain measurement; Testing; Thickness measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.412046
