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Weibull Analysis of Fracture Test Data on Bovine Cortical Bone : Influence of Orientation
Joint Authors
Khandaker, Morshed
Ekwaro-Osire, Stephen
Source
International Journal of Biomaterials
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-09
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The fracture toughness, KIC, of a cortical bone has been experimentally determined by several researchers.
The variation of KIC values occurs from the variation of specimen orientation, shape, and size during the experiment.
The fracture toughness of a cortical bone is governed by the severest flaw and, hence, may be analyzed using Weibull statistics.
To the best of the authors’ knowledge, however, no studies of this aspect have been published.
The motivation of the study is the evaluation of Weibull parameters at the circumferential-longitudinal (CL) and longitudinal-circumferential (LC) directions.
We hypothesized that Weibull parameters vary depending on the bone microstructure.
In the present work, a two-parameter Weibull statistical model was applied to calculate the plane-strain fracture toughness of bovine femoral cortical bone obtained using specimens extracted from CL and LC directions of the bone.
It was found that the Weibull modulus of fracture toughness was larger for CL specimens compared to LC specimens, but the opposite trend was seen for the characteristic fracture toughness.
The reason for these trends is the microstructural and extrinsic toughening mechanism differences between CL and LC directions bone.
The Weibull parameters found in this study can be applied to develop a damage-mechanics model for bone.
American Psychological Association (APA)
Khandaker, Morshed& Ekwaro-Osire, Stephen. 2013. Weibull Analysis of Fracture Test Data on Bovine Cortical Bone : Influence of Orientation. International Journal of Biomaterials،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-487374
Modern Language Association (MLA)
Khandaker, Morshed& Ekwaro-Osire, Stephen. Weibull Analysis of Fracture Test Data on Bovine Cortical Bone : Influence of Orientation. International Journal of Biomaterials No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-487374
American Medical Association (AMA)
Khandaker, Morshed& Ekwaro-Osire, Stephen. Weibull Analysis of Fracture Test Data on Bovine Cortical Bone : Influence of Orientation. International Journal of Biomaterials. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-487374
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-487374