Stress distributions on the Haversian canal due to microcracks in a cortical bone

R. M.V. Pidaparti, D. B. Burr

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

This paper presents a microstructural analysis of an idealized cortical bone cross-section using finite element analysis. The purpose of the model is to examine the influence that the cement line has in reducing Haversian canal wall stresses when microcracks are present. The cement line modulus was varied between 40%-80% of the osteonal modulus. Three microcrack geometries were considered: a radial crack emanating from the Haversian canal; an interface crack between the cement layer and the interstitial bone; and a radial crack running from interstitial bone into the cement layer. The data show that larger cement line moduli reduce stresses on the Haversian canal wall. The data also show that the stress concentration on the Havesian canal wall is higher than the concentration at the crack tip for any of the microcrack geometries considered. The introduction of a microcrack to a bone section increases the stress concentration on the Haversian canal walls.

Original languageEnglish (US)
Title of host publication1991 Advances in Bioengineering
PublisherPubl by ASME
Pages357-359
Number of pages3
ISBN (Print)0791808890
StatePublished - Dec 1 1991
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Atlanta, GA, USA
Duration: Dec 1 1991Dec 6 1991

Publication series

NameAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Volume20

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAtlanta, GA, USA
Period12/1/9112/6/91

ASJC Scopus subject areas

  • Engineering(all)

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    Pidaparti, R. M. V., & Burr, D. B. (1991). Stress distributions on the Haversian canal due to microcracks in a cortical bone. In 1991 Advances in Bioengineering (pp. 357-359). (American Society of Mechanical Engineers, Bioengineering Division (Publication) BED; Vol. 20). Publ by ASME.