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Fracture toughness of bovine bone: influence of orientation and storage media

Paper ID Volume ID Publish Year Pages File Format Full-Text
13534 876 2001 6 PDF Available
Title
Fracture toughness of bovine bone: influence of orientation and storage media
Abstract

Using the single-edge notched bending (SENB) test, two fracture toughness parameters of longitudinal and transverse bovine bone specimens were evaluated: the critical stress intensity factor, Kc, determined from the peak load to initiate fracture, and the energy or work of fracture, Wf, the energy required to extend a crack through a notched specimen. It was found that preservation of bone in alcohol resulted in a 25–45% higher Kc value compared to control specimens stored in physiological saline; whereas the work of fracture, Wf, demonstrated the opposite behaviour, with the alcohol stored specimens having a 28–56% lower value than the saline control specimens. It was established that the effect of alcohol is reversible upon the bone being restored in saline. Consistent with previous studies, it was found that cracks oriented in the longitudinal direction resulted in both a significantly lower fracture toughness and lower work of fracture than those cracks directed transversely. The results are discussed in terms of the proposed deformation and fracture mechanisms known to occur in bone.

Keywords
Fracture toughness; Bovine bone; Stress intensity factor; Work of fracture; Storage; Alcohol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 22, Issue 23, December 2001, Pages 3127–3132
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us