Experimental and numerical analysis of Izod impact test of cortical bone tissue |
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Authors: | A A Abdel-Wahab V V Silberschmidt |
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Institution: | 1.Wolfson School of Mechanical and Manufacturing Engineering,Loughborough University,Loughborough, Leicestershire,UK |
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Abstract: | Bones can only sustain loads until a certain limit, beyond which they fail. Usually, the reasons for bone fracture are traumatic
falls, sports injuries, and engagement in transport or industrial accidents. A proper treatment of bones and prevention of
their fracture can be supported by in-depth understanding of deformation and fracture behavior of this tissue in such dynamic
events. In this paper, a combination of experimental and numerical analysis was carried out in order to comprehend the fracture
behavior of cortical bone tissue. Experimental tests were performed to study the transient dynamic behavior of cortical bone
tissue under impact bending loading. The variability of absorbed energy for different cortex positions and notch depths was
studied using Izod impact tests. Also, Extended Finite-Element Method implemented into the commercial finite-element software
Abaqus was used to simulate the crack initiation and growth processes in a cantilever beam of cortical bone exposed to impact
loading using the Izod loading scheme. The simulation results show a good agreement with the experimental data. |
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