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Numerical study of crack initiation and growth in human cortical bone: Effect of micro-morphology
journal contribution
posted on 2020-04-27, 15:28 authored by Mayao Wang, Simin LiSimin Li, Annika vom Scheidt, Mahan Qwamizadeh, Björn Busse, Vadim SilberschmidtVadim SilberschmidtIn this study, crack initiation and growth in four different groups of human cortical bones, i.e., young, aged, diseased (osteoporosis) and treated are investigated numerically with a zero-thickness Cohesive Element Method, employing statistical realisations of randomly distributed microstructural constituents. The obtained simulation results demonstrated distinct crack paths in bones with varying microstructures, based on analysis of initiation, propagation and branching of multiple cracks, with supporting fracture toughening mechanisms. It is shown that superior mechanical properties and fracture resistance in the young and treated groups originated from both the qualitative and quantitative features of microstructural constituents.
Funding
German Research Foundation (DFG) (BU 2562/3-1)
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Engineering Fracture MechanicsVolume
232Publisher
Elsevier BVVersion
- AM (Accepted Manuscript)
Rights holder
© Elsevier LtdPublisher statement
This paper was accepted for publication in the journal Engineering Fracture Mechanics and the definitive published version is available at https://doi.org/10.1016/j.engfracmech.2020.107051.Acceptance date
2020-04-15Publication date
2020-04-24Copyright date
2020ISSN
0013-7944Publisher version
Language
- en
Depositor
Prof Vadim Silberschmidt. Deposit date: 25 April 2020Article number
107051Usage metrics
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