Related Experiment Video
Updated: Jun 21, 2026

Fragility Assessment of Bovine Cortical Bone Using Scratch Tests
Published on: November 30, 2017
A fiber-ceramic matrix composite material model for osteonal cortical bone fracture micromechanics: solution of
Ahmad Raeisi Najafi1, Ahmad Reza Arshi, Kaveh PourAkbar Saffar
1Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran.
Abstract:
Microcracks formed in bone are due to fatigue and cyclic loading. This formation is associated with a reduction of bone resistance to fracture. However, the significance of the parameters that govern microcrack behavior is not yet fully explored. A two-dimensional micromechanical fiber-ceramic matrix composite material model of the osteonal cortical bone is presented in this paper. The solution for the edge dislocations as Green's function, is adopted to formulate a system of singular integral equations for the general microcracks in vicinity of the osteon. The effects of microstructural morphology and heterogeneity of the bone upon the fracture behavior is investigated by computing the Stress Intensity Factor (SIF) near the microcracks tips. Analysis of microcracks interaction indicates the significance of microcracks configuration in the shape of either stress amplification or stress shielding.
Related Concept Videos
Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Microcracking in Concrete
The Bone Matrix

