Dynamic properties of cortical bone tissue: impact tests and numerical study

Adel A. Abdel-Wahab, Vadim V. Silberschmidt

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

1 Citation (Scopus)

Abstract

Bone is the principal structural component of a skeleton: it assists the load-bearing framework of a living body. Structural integrity of this component is important; understanding of its mechanical behaviour up to failure is necessary for prevention and diagnostic of trauma. Bone fractures occur in both low-energy trauma, such as falls and sports injury, and high-energy trauma, such as car crash and cycling accidents. By developing adequate numerical models to predict and describe the deformation and fracture behaviour up to fracture of a cortical bone tissue, a detailed study of reasons for, and ways to prevent or treatment methods of, bone fracture could be implemented. This study deals with both experimental analysis and numerical simulations of this tissue and its response to impact dynamic loading. Two areas are covered: Izod tests for quantifying a bone’s behaviour under impact loading, and a 3D finite-element model simulating these tests. In the first part, properties of cortical bone tissue were investigated under impact loading condition. In the second part, a 3D numerical model for the Izod test was developed using the Abaqus/Explicit finite-element software. Bone has time-dependent properties – viscoelastic – that were assigned to the specimen to simulate the short term event, impact. The developed numerical model was capable of capturing the behaviour of the hammer-specimen interaction correctly. A good agreement between the experimental and numerical data was found.
Original languageEnglish
Title of host publicationAdvances in Experimental Mechanics VIII
Subtitle of host publicationselected, Peer-Reviewed Papers of the 8th International Conference on Advances in Experimental Mechanics, Integrating Simulation and Experimentation for Validation, (BSSM 2011), Sept. 7-9, Edinburgh, Scotland
EditorsR.L. Burguete, M. Lucas, E.A. Patterson, S. Quinn
PublisherTrans Tech Publications
Pages387-392
Number of pages5
ISBN (Print)9783037852026
DOIs
Publication statusPublished - 31 Oct 2011
Externally publishedYes

Publication series

NameApplied Mechanics and Materials

Keywords

  • cortical bone
  • dynamic
  • impact
  • finite-element
  • Izod test

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