Title

Mechanisms Of Large Tensile Stiffness And High Fracture Strength Of Bone

Keywords

Bioceramic Composite; Bone; Fracture Strength; Hydroxyapatite Sheet Fibers; Tensile Stiffness

Abstract

Scanning electron microscope (SEM) observation shows that a fibula bone is a kind of bioceramic composite consisting of hydroxyapatite crystal layers and mineral collagen-protein matters. The hydroxyapatite crystal layers are further composed of hydroxyapatite sheet fibers. It is also found that the hydroxyapatite sheet fibers have quite large volume fraction and very small cross section size in the bone. The thickness of the sheet fibers is within nanometer scale. The mechanisms of the large tensile stiffness and the high fracture strength of the bone are investigated based on the microstructural characteristics of the hydroxyapatite sheet fibers and the theories of the composite mechanics and fracture mechanics. The investigated results reveal that the large volume fraction and the small cross section size of the hydroxyapatite sheet fibers endow the bone with large tensile stiffness and high fracture strength. Copyright © 2013 American Scientific Publishers All rights reserved.

Publication Date

6-1-2013

Publication Title

Journal of Computational and Theoretical Nanoscience

Volume

10

Issue

6

Number of Pages

1425-1428

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1166/jctn.2013.2864

Socpus ID

84879623618 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84879623618

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