Estimation of apparent elastic moduli of trabecular bone considering biological apatite (BAp) crystallite orientation in tissue modulus

Khairul Salleh Basaruddin, Naoki Takano

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

2 Citations (Scopus)

Abstract

This study presents a prediction of apparent elastic moduli of vertebral trabecular bone using the homogenization method. A micro-finite element (FE) model of trabecular bone was reconstructed from a sequential of cross-section micro-CT image by converting bone voxels to brick elements. Eight regions of interest (ROIs) were extracted from two lumbar vertebra bone specimens of healthy and osteoporotic. The homogenization method and finite element method was employed to analyze the microscopic trabecular bone. Bone tissue property was modeled as orthotropy material considering the biological apatite (BAp) crystallite orientation. This research focuses on the effect of morphological difference between healthy and osteoporotic bones to the apparent elastic moduli. The change of degree of anisotropy was also discussed. Comparison of the calculated Young's moduli in vertical axis with Keyak et al.'s experimental result showed good agreement and proved the reliability of the numerical model.

Original languageEnglish
Title of host publicationAdvanced Materials Research IV
Pages167-171
Number of pages5
DOIs
Publication statusPublished - 2014 Mar 19
Event2014 4th International Conference on Advanced Materials Research, ICAMR 2014 - Macau, China
Duration: 2014 Jan 222014 Jan 23

Publication series

NameAdvanced Materials Research
Volume894
ISSN (Print)1022-6680

Other

Other2014 4th International Conference on Advanced Materials Research, ICAMR 2014
CountryChina
CityMacau
Period14/1/2214/1/23

Keywords

  • Apparent elastic moduli
  • BAp crystallite
  • Homogenization method
  • Trabecular bone

ASJC Scopus subject areas

  • Engineering(all)

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