Abstract：
:The influence of porosity, osteon density, osteonal area, osteonal lamellar area, osteon size, and haversian canal size on the tension and shear fracture toughness, that is, the mode I and mode II strain energy release rate (GIc and GIIc), respectively, were investigated for the human femur and the tibia. The results suggest that porosity and osteon density were the best explanatory morphological parameters for GIc and GIIc. Both GIc and GIIc significantly decrease with increasing porosity. They also increase with increasing osteon density, the increase being significant for the femur only. Morphological parameters, altogether, can explain 49%-68% of the variation in fracture toughness. We concluded that, although there must be other factors such as biochemical components and microdamage, osteon morphology has an important influence on fracture resistance of the cortical bone.
journal_name
Bonejournal_title
Boneauthors
Yeni YN,Brown CU,Wang Z,Norman TLdoi
10.1016/s8756-3282(97)00173-7subject
Has Abstractpub_date
1997-11-01 00:00:00pages
453-9issue
5eissn
8756-3282issn
1873-2763pii
S8756328297001737journal_volume
21pub_type
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