Mechanical anisotropy of individual osteons in bone tissue at high spatial resolutions

Davide Carnelli, Haimin Yao, Ming Dao, Pasquale Vena, Roberto Contro, Christine Ortiz

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Secondary osteons, the fundamental units of cortical bone, consist of cylindrical lamellar composites composed of mineralized collagen fibrils. Due to its lamellar structure, a multiscale knowledge of the mechanical properties of cortical bone is required to understand the biomechanical function of the tissue. In this light, nanoindentation tests were performed along the axial and transverse directions following a radial path from the Haversian canal to the osteonal edges. Different length scales are explored by means of indentations at different maximum penetration depths. Indentation moduli and hardness data were then interpreted in the context of the known microstructure. Results suggest that secondary osteons hierarchical structure is responsible for an observed length scale effect, homogenization phenomena and anisotropy of mechanical properties.
Original languageEnglish
Title of host publicationProceedings of the ASME Summer Bioengineering Conference 2009, SBC2009
Pages1099-1100
Number of pages2
EditionPART B
DOIs
Publication statusPublished - 1 Dec 2009
Externally publishedYes
Event11th ASME Summer Bioengineering Conference, SBC2009 - Lake Tahoe, CA, United States
Duration: 17 Jun 200921 Jun 2009

Conference

Conference11th ASME Summer Bioengineering Conference, SBC2009
Country/TerritoryUnited States
CityLake Tahoe, CA
Period17/06/0921/06/09

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering

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