Effect of ageing on microstructure and fracture behavior of cortical bone as determined by experiment and Extended Finite Element Method (XFEM).
Age
Bone fracture
Cortical bone
Microstructure
XFEM
Journal
Medical engineering & physics
ISSN: 1873-4030
Titre abrégé: Med Eng Phys
Pays: England
ID NLM: 9422753
Informations de publication
Date de publication:
07 2021
07 2021
Historique:
received:
07
10
2020
revised:
25
05
2021
accepted:
27
05
2021
entrez:
22
6
2021
pubmed:
23
6
2021
medline:
21
10
2021
Statut:
ppublish
Résumé
Bone fracture is a severe health concern; therefore, understanding the causes of bone fracture are crucial. This paper investigates the microstructure and fracture behaviour of cadaveric cortical bone of two different groups (Young, n= 6; Aged, n=7). The microstructure is obtained from µ-CT images, and the material parameters are measured with nanoindentation. Fracture behaviour in transverse and longitudinal orientations is investigated experimentally and numerically. The results show that the Haversian canal (HC) size increases and the osteon wall thickness (OWT) decreases significantly in the aged group, whereas a nonsignificant difference is found in tissue properties. The crack initiation (J
Identifiants
pubmed: 34154770
pii: S1350-4533(21)00064-3
doi: 10.1016/j.medengphy.2021.05.021
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
100-112Informations de copyright
Copyright © 2021. Published by Elsevier Ltd.