JOM

, Volume 60, Issue 6, pp 39–44

Aging and loading rate effects on the mechanical behavior of equine bone

  • Robb M. Kulin
  • Fengchun Jiang
  • Kenneth S. Vecchio
Research Summary Biological Materials Science

Abstract

Whether due to a sporting accident, high-speed impact, fall, or other catastrophic event, the majority of clinical bone fractures occur under dynamic loading conditions. However, although extensive research has been performed on the quasi-static fracture and mechanical behavior of bone to date, few high-quality studies on the fracture behavior of bone at high strain rates have been performed. Therefore, many questions remain regarding the material behavior, including not only the loading-rate-dependent response of bone, but also how this response varies with age. In this study, tests were performed on equine femoral bone taken post-mortem from donors 6 months to 28 years of age. Quasi-static and dynamic tests were performed to determine the fracture toughness and compressive mechanical behavior as a function of age at varying loading rates. Fracture paths were then analyzed using scanning confocal and scanning-electron microscopy techniques to assess the role of various microstructural features on toughening mechanisms.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© TMS 2008

Authors and Affiliations

  • Robb M. Kulin
    • 1
  • Fengchun Jiang
    • 2
  • Kenneth S. Vecchio
    • 2
  1. 1.Materials Science & Engineering ProgramUniversity of California at San DiegoLa JollaUSA
  2. 2.NanoEngineering DepartmentUniversity of California at San DiegoLa JollaUSA

Personalised recommendations