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Quasi-Static and Harmonic Indentation of Osteonal Bone
The purpose of the study was to compare Quasi-Static (QS) and harmonic (CSM) methods of indentation testing. Bone sections were obtained from mid-femoral diaphyses of dogs which received a pair of calcein labels. Labeled (n = 35) and unlabeled (n = 112) osteons were identified. Indentation modulus (...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
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SAGE-Hindawi Access to Research
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2958426/ https://www.ncbi.nlm.nih.gov/pubmed/20981356 http://dx.doi.org/10.4061/2010/736830 |
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author | Huja, S. S. Hay, J. L. Rummel, A. M. Beck, F. M. |
author_facet | Huja, S. S. Hay, J. L. Rummel, A. M. Beck, F. M. |
author_sort | Huja, S. S. |
collection | PubMed |
description | The purpose of the study was to compare Quasi-Static (QS) and harmonic (CSM) methods of indentation testing. Bone sections were obtained from mid-femoral diaphyses of dogs which received a pair of calcein labels. Labeled (n = 35) and unlabeled (n = 112) osteons were identified. Indentation modulus (IM) and hardness (H) for the CSM method were collected during the entire loading cycle to peak depth, while IM and H for QS method were calculated at a peak depth of 500 nm. Results: The mean (SD) of the IM and H for labeled osteons were as follows: QS IM = 15.3 GPa (3.85) versus CSM IM = 14.7 GPa (3.58); P = .52 and QS H = .39 GPa (.171) versus CSM H = .42 GPa (.146); P = .32. The mean (SD) of the IM and H for unlabeled osteons were as follows: QS IM = 21.5 GPa (2.80) versus CSM IM = 20.6 GPa (2.53); P = .054 and QS H = .64 GPa (.117) versus CSM H = .70 GPa (.120); P = .017. There was no difference in IM and H for the two methods, except for H of the unlabeled osteons. In addition, for the CSM method, IM at 100 nm, 200 nm, 300 nm, 400 nm and 500 nm were not statistically significant different (P = .06). Bone is viscoelastic at an organ level. However, this component of its behavior was not detected at the length scale examined. |
format | Text |
id | pubmed-2958426 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | SAGE-Hindawi Access to Research |
record_format | MEDLINE/PubMed |
spelling | pubmed-29584262010-10-27 Quasi-Static and Harmonic Indentation of Osteonal Bone Huja, S. S. Hay, J. L. Rummel, A. M. Beck, F. M. J Dent Biomech Research Article The purpose of the study was to compare Quasi-Static (QS) and harmonic (CSM) methods of indentation testing. Bone sections were obtained from mid-femoral diaphyses of dogs which received a pair of calcein labels. Labeled (n = 35) and unlabeled (n = 112) osteons were identified. Indentation modulus (IM) and hardness (H) for the CSM method were collected during the entire loading cycle to peak depth, while IM and H for QS method were calculated at a peak depth of 500 nm. Results: The mean (SD) of the IM and H for labeled osteons were as follows: QS IM = 15.3 GPa (3.85) versus CSM IM = 14.7 GPa (3.58); P = .52 and QS H = .39 GPa (.171) versus CSM H = .42 GPa (.146); P = .32. The mean (SD) of the IM and H for unlabeled osteons were as follows: QS IM = 21.5 GPa (2.80) versus CSM IM = 20.6 GPa (2.53); P = .054 and QS H = .64 GPa (.117) versus CSM H = .70 GPa (.120); P = .017. There was no difference in IM and H for the two methods, except for H of the unlabeled osteons. In addition, for the CSM method, IM at 100 nm, 200 nm, 300 nm, 400 nm and 500 nm were not statistically significant different (P = .06). Bone is viscoelastic at an organ level. However, this component of its behavior was not detected at the length scale examined. SAGE-Hindawi Access to Research 2010-02-17 /pmc/articles/PMC2958426/ /pubmed/20981356 http://dx.doi.org/10.4061/2010/736830 Text en Copyright © 2010 S. S. Huja et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Huja, S. S. Hay, J. L. Rummel, A. M. Beck, F. M. Quasi-Static and Harmonic Indentation of Osteonal Bone |
title | Quasi-Static and Harmonic Indentation of Osteonal Bone |
title_full | Quasi-Static and Harmonic Indentation of Osteonal Bone |
title_fullStr | Quasi-Static and Harmonic Indentation of Osteonal Bone |
title_full_unstemmed | Quasi-Static and Harmonic Indentation of Osteonal Bone |
title_short | Quasi-Static and Harmonic Indentation of Osteonal Bone |
title_sort | quasi-static and harmonic indentation of osteonal bone |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2958426/ https://www.ncbi.nlm.nih.gov/pubmed/20981356 http://dx.doi.org/10.4061/2010/736830 |
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