Mechanism of Large Elastic Modulus of Bone

Abstract:

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Scanning electron microscope (SEM) observation shows that fibula bone is a kind of bioceramic composite consisting of hydroxyapatite layers and protein matters. The hydroxyapatite layers are further composed of hydroxyapatite sheets. The observation also shows that the hydroxyapatite sheets possess quite large volume fraction and also have very long and thin fiber shape. The mechanism of the large volume fraction of the hydroxyapatite sheets to ensure the larger elastic modulus of the bone was investigated based on the model of the bone composite and the theory of the composite mechanics. The investigated result reveals that the large volume fraction of the hydroxyapatite sheets endows the bone with large elastic modulus.

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Periodical:

Edited by:

Enhou Han, Guanghong Lu and Xiaolin Shu

Pages:

390-394

DOI:

10.4028/www.scientific.net/MSF.689.390

Citation:

B. Chen et al., "Mechanism of Large Elastic Modulus of Bone", Materials Science Forum, Vol. 689, pp. 390-394, 2011

Online since:

June 2011

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Price:

$35.00

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