Effect of groove on bone fracture toughness

T. L. Norman, D. Vashishth, David Burr

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

When testing for the effects of bone orientation on mode I fracture toughness, compact tension specimens are grooved with a V-notch to provide a crack guide. The effect of grooving on the expressions for the critical stress intensity factor (Kc) and the critical strain energy release rate (Gc) for mode I fracture toughness was investigated. Experiments were performed using grooved and ungrooved bovine compact tension specimens. The results indicate that the standard expression used to determine Kc for a compact tension specimen requires modification. The thickness (B) must be modified to account for the thickness between the grooves (Bn). The thickness used in the standard expression is replaced by an effective thickness written as (BBn)0.5. It was also found that the thickness between the grooves should be used in the standard formula for Gc.

Original languageEnglish
Pages (from-to)1489-1492
Number of pages4
JournalJournal of Biomechanics
Volume25
Issue number12
DOIs
StatePublished - 1992

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Bone Fractures
Fracture toughness
Bone
Energy release rate
Strain energy
Stress intensity factors
Cracks
Bone and Bones
Testing
Experiments

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Effect of groove on bone fracture toughness. / Norman, T. L.; Vashishth, D.; Burr, David.

In: Journal of Biomechanics, Vol. 25, No. 12, 1992, p. 1489-1492.

Research output: Contribution to journalArticle

Norman, TL, Vashishth, D & Burr, D 1992, 'Effect of groove on bone fracture toughness', Journal of Biomechanics, vol. 25, no. 12, pp. 1489-1492. https://doi.org/10.1016/0021-9290(92)90061-5
Norman, T. L. ; Vashishth, D. ; Burr, David. / Effect of groove on bone fracture toughness. In: Journal of Biomechanics. 1992 ; Vol. 25, No. 12. pp. 1489-1492.
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