Micromechanical testing of bone trabeculae - potentials and limitations

E. Lucchinetti, D. Thomann, G. Danuser

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The mechanical properties of bone are studied mostly for reasons related to skeletal pathology. However, bone is also very interesting from a material science perspective because it is a natural hierarchical composite material. The mechanical properties of bone depend on both the structural arrangement and the properties of the constituting materials, namely the organic polymer collagen and the inorganic salt apatite. While the mechanical properties of bone samples at the macroscopic scale are measured routinely, mechanical tests on micrometer-sized specimens are still at development stage. In this paper, protocols for measuring the elasticity of cancellous bone trabeculae are reviewed. The published values for the elastic modulus of trabeculae vary between 1 GPa and 15 GPa. Reasons for this broad range of values may be located in the intrinsic difficulties of preparing, handling, and testing inhomogeneous, anisotropic and asymmetric micro-samples. We discuss the major error sources in existing testing procedures and suggest potential strategies to enhance their performance.

Original languageEnglish (US)
Pages (from-to)6057-6064
Number of pages8
JournalJournal of Materials Science
Volume35
Issue number24
DOIs
StatePublished - Dec 2000

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Bone
Testing
Mechanical properties
Apatites
Organic polymers
Apatite
Pathology
Materials science
Collagen
Elasticity
Salts
Elastic moduli
Composite materials

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Micromechanical testing of bone trabeculae - potentials and limitations. / Lucchinetti, E.; Thomann, D.; Danuser, G.

In: Journal of Materials Science, Vol. 35, No. 24, 12.2000, p. 6057-6064.

Research output: Contribution to journalArticle

Lucchinetti, E. ; Thomann, D. ; Danuser, G. / Micromechanical testing of bone trabeculae - potentials and limitations. In: Journal of Materials Science. 2000 ; Vol. 35, No. 24. pp. 6057-6064.
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