سال انتشار: ۱۳۸۶

محل انتشار: پانزدهمین کنفرانس سالانه مهندسی مکانیک

تعداد صفحات: ۵

نویسنده(ها):

Raeisi Najafi – PhD, Sports Engineering Division National Olympic Academy of Iran
Arshi – Assistant professor, Amirkabir University of TechnologyTehran, Iran
Eslami – Professor, Amirkabir University of TechnologyTehran, Iran
Katoozian – Assistant professor, Amirkabir University of TechnologyTehran, Iran

چکیده:

In this paper, the effect of osteonal cortical bone microstructure upon microcrack propagation trajectory is investigated. A two-dimensional micromechanical fiber reinforced composite materials model for osteonal cortical bone, using finite element method, is presented. Here, the interstitial tissue is modeled as a matrix and the osteon is modeled as a fiber. The interface between the osteons and interstitial tissue is also presented by cement line. Fracture test on compact tension (CT) samples of bovine femur is also performed. Micrographs of fracture surfaces are obtained using Scanning Electron Microscope (SEM). Results show that the crack propagation is greatly influenced by osteonal density.