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Acoustic emissions in vertebral cortical shell failure.

Publication ,  Journal Article
Shridharani, JK; Ortiz-Paparoni, MA; Op 't Eynde, J; Bass, CR
Published in: Journal of biomechanics
March 2021

Understanding the initiation of bony failure is critical in assessing the progression of bone fracture and in developing injury criteria. Detection of acoustic emissions in bone can be used to identify fractures more sensitively and at an earlier inception time compared to traditional methods. However, high rate loading conditions, complex specimen-device interaction or geometry may cause other acoustic signals. Therefore, characterization of the isolated local acoustic emission response from cortical bone fracture is essential to distinguish its characteristics from other potential acoustic sources. This work develops a technique to use acoustic emission signals to determine when cortical bone failure occurs by characterization using both a Welch power spectral density estimate and a continuous wavelet transform. Isolated cortical shell specimens from thoracic vertebral bodies with attached acoustic sensors were subjected to quasistatic loading until failure. The resulting acoustic emissions had a wideband frequency response with peaks from 20 to 900 kHz, with the spectral peaks clustered in three bands of frequencies (166 ± 52.6 kHz, 379 ± 37.2 kHz, and 668 ± 63.4 kHz). Using these frequency bands, acoustic emissions can be used as a monitoring tool in biomechanical spine testing, distinguishing bone failure from structural response. This work presents a necessary set of techniques for effectively utilizing acoustic emissions to determine the onset of cortical bone fracture in biological material testing. Acoustic signatures can be developed for other cortical bone regions of interest using the presented methods.

Duke Scholars

Published In

Journal of biomechanics

DOI

EISSN

1873-2380

ISSN

0021-9290

Publication Date

March 2021

Volume

117

Start / End Page

110227

Related Subject Headings

  • Thoracic Vertebrae
  • Materials Testing
  • Humans
  • Fractures, Bone
  • Cortical Bone
  • Biomedical Engineering
  • Acoustics
  • 4207 Sports science and exercise
  • 4003 Biomedical engineering
  • 1106 Human Movement and Sports Sciences
 

Citation

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ICMJE
MLA
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Shridharani, J. K., Ortiz-Paparoni, M. A., Op ’t Eynde, J., & Bass, C. R. (2021). Acoustic emissions in vertebral cortical shell failure. Journal of Biomechanics, 117, 110227. https://doi.org/10.1016/j.jbiomech.2021.110227
Shridharani, Jay K., Maria A. Ortiz-Paparoni, Joost Op ’t Eynde, and Cameron R. Bass. “Acoustic emissions in vertebral cortical shell failure.Journal of Biomechanics 117 (March 2021): 110227. https://doi.org/10.1016/j.jbiomech.2021.110227.
Shridharani JK, Ortiz-Paparoni MA, Op ’t Eynde J, Bass CR. Acoustic emissions in vertebral cortical shell failure. Journal of biomechanics. 2021 Mar;117:110227.
Shridharani, Jay K., et al. “Acoustic emissions in vertebral cortical shell failure.Journal of Biomechanics, vol. 117, Mar. 2021, p. 110227. Epmc, doi:10.1016/j.jbiomech.2021.110227.
Shridharani JK, Ortiz-Paparoni MA, Op ’t Eynde J, Bass CR. Acoustic emissions in vertebral cortical shell failure. Journal of biomechanics. 2021 Mar;117:110227.
Journal cover image

Published In

Journal of biomechanics

DOI

EISSN

1873-2380

ISSN

0021-9290

Publication Date

March 2021

Volume

117

Start / End Page

110227

Related Subject Headings

  • Thoracic Vertebrae
  • Materials Testing
  • Humans
  • Fractures, Bone
  • Cortical Bone
  • Biomedical Engineering
  • Acoustics
  • 4207 Sports science and exercise
  • 4003 Biomedical engineering
  • 1106 Human Movement and Sports Sciences