The effect of porosity and mineral content on the Young's modulus of elasticity of compact bone.
The Young's modulus of elasticity, the calcium content and the volume fraction (1-porosity) of 23 tension specimens and 80 bending specimens, taken from compact bone of 18 species of mammal, bird and reptile, were determined. There was a strong positive relationship between Young's modulus and both calcium content and volume fraction. A power law model fits the data better than a linear model. Young's modulus has a roughly cubic relationship with both calcium content and volume fraction. Over 80% of the total variation in Young's modulus in this data set is explained by these two variables.
Currey
J D
JD
Department of Biology, University of York, U.K.
D000818:Animals; D001696:Biomechanical Phenomena; D001842:Bone and Bones / Q000032:analysis / Q000502:physiology*; D004548:Elasticity; D008433:Mathematics; D008903:Minerals / Q000032:analysis*; D008954:Models, Biological
D008903:Minerals