Instrumented tensile-impact tests of bone

Saha, S.; Hayes, W. C.

Affiliations

¹Department of Engineering & Applied Science and Section of Orthopaedic Surgery, Yale University, New Haven

²Department of Applied Mechanics, Stanford University, Stanford

Abstract and keywords

An instrumented pendulum-type impact tester was used to obtain tensile-impact properties for compact bone. Load-time histories throughout impact were recorded. Impact tests on 50 longitudinally oriented fresh-beef-bone samples yielded a proportional limit of 9.6±4.1 ksi (66.2±28.2 MPa), an ultimate stress of 17.6±5.3 ksi (121.3±36.5 MPa) and an energy-absorption capacity of 142±85 in. Ib/in.² (24900±14900 J/m²). A static tensile strength of 14.7±2.8 ksi (101±19 MPa) was obtained from static testing of 24 additional specimens. The tensile-impact strength was 20 percent higher than the static strength. Statistically significant correlations between elastic properties, impact strength and impact energy were found. Bone microstructure and fracture-surface topography were also examined.

Keywords: Tensile Strength; Fluid Dynamics; Elastic Property; Impact Strength; Impact Energy

Links

DOI: 10.1007/BF02323147

WoS: A1974U804300001

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Cited By (15)

Year	Entry
2004	Kemper AR, McNally C, Kennedy EA, Manoogian SJ, Rath AL, Stitzel JD, Duma SM, Matsuoka F, Hasegawa J. Methods for dynamic material testing of human cortical bone specimens. In: Proceedings of the 32nd International Workshop on Human Subjects for Biomechanical Research. 2004.31-42.
1977	Saha S, Hayes WC. Relations between tensile impact properties and microstructure of compact bone. Calcif Tiss Res. December 1977;24(1):65-72.
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1976	Saha S, Hayes WC. Tensile impact properties of human compact bone. J Biomech. 1976;9(4):243-251.
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2013	Gilchrist S, Guy P, Cripton PA. Development of an inertia-driven model of sideways fall for detailed study of femur fracture mechanics. J Biomech Eng. December 2013;135(12):121001.
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2011	Abdel-Wahab AA-GM. Experimental and Numerical Analysis of Deformation and Fracture of Cortical Bone Tissue [PhD thesis]. Loughborough University; August 2011.
2014	Gilchrist SM. Comparison of Proximal Femur Deformations, Failures and Fractures in Quasi-Static and Inertially-Driven Simulations of a Sideways Fall from Standing: An Experimental Study Utilizing Novel Fall Simulation, Digital Image Correlation, and Development of Digital Volume Correlation Techniques [PhD thesis]. Vancouver, BC: University of British Columbia; January 2014.
2005	Kemper AR. Material Properties of Human Rib Cortical Bone from Dynamic Tension Coupon Testing [Master's thesis]. Virginia Polytechnic Institute and State University; April 22, 2005.
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