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Outstanding meeting paper: high-speed photography of the development of microdamage in trabecular bone during compression

Record type: Article

The mechanical properties of healthy and diseased bone tissue are extensively studied in mechanical tests. Most of this research is motivated by the immense costs of health care and social impacts due to osteoporosis in post-menopausal women and the aged. Osteoporosis results in bone loss and change of trabecular architecture, causing a decrease in bone strength. To address the problem of assessing local failure behavior of bone, we combined mechanical compression testing of trabecular bone samples with high-speed photography. In this exploratory study, we investigated healthy, osteoarthritic, and osteoporotic human vertebral trabecular bone compressed at high strain rates. Apparent strains were found to transfer into to a broad range of local strains. Strained trabeculae were seen to whiten with increasing strain. Comparison of whitened regions seen in high-speed photography sequences with scanning electron micrographs showed that the observed whitening was due to the formation of microcracks. From the results of a motion energy filter applied to the recorded movies, we saw that the whitened areas are, presumably, also areas of high deformation. In summary, high-speed photography allows the detection of microdamage in real time, leading toward a better understanding of the local processes involved in bone failure.

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Citation

Thurner, Philipp J., Erickson, Blake, Schriock, Zachary, Langan, John, Scott, Jeff, Zhao, Maria, Weaver, James C., Fantner, Georg E., Turner, Patricia, Kindt, Johannes H., Schitter, Georg, Morse, Daniel E. and Hansma, Paul K. (2006) Outstanding meeting paper: high-speed photography of the development of microdamage in trabecular bone during compression Journal of Materials Research, 21, (5), pp. 1093-1100. (doi:10.1557/JMR.2006.0139).

More information

Published date: May 2006
Keywords: bone, fracture, mechanical properties, high-speed photography, microdamage

Identifiers

Local EPrints ID: 48806
URI: http://eprints.soton.ac.uk/id/eprint/48806
PURE UUID: 11369be8-66f6-42c9-a103-9bfcce1dcb7f

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Date deposited: 12 Oct 2007
Last modified: 17 Jul 2017 14:58

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Contributors

Author: Blake Erickson
Author: Zachary Schriock
Author: John Langan
Author: Jeff Scott
Author: Maria Zhao
Author: James C. Weaver
Author: Georg E. Fantner
Author: Patricia Turner
Author: Johannes H. Kindt
Author: Georg Schitter
Author: Daniel E. Morse
Author: Paul K. Hansma

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