Mechanism of Large Elastic Modulus of Bone
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.
Fibula bone composite hydroxyapatite sheets volume fraction elastic modulus
Bin Chen Dagang Yin Ji Luo Quan Yuan Jinghong Fan
College of Resource and Environment Science, Chongqing University, Chongqing 400044, China Key Labor College of Resource and Environment Science, Chongqing University, Chongqing 400044, China Division of Mechanical Engineering, Alfred University, Alfred, N Y 14802, USA
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
390-394
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）