Elastic strains in antler trabecular bone determined by synchrotron X-ray diffractionCitation formats

Standard

Elastic strains in antler trabecular bone determined by synchrotron X-ray diffraction. / Akhtar, R.; Daymond, M. R.; Almer, J. D.; Mummery, P. M.

In: Acta Biomaterialia, Vol. 4, No. 6, 11.2008, p. 1677-1687.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Akhtar, R. ; Daymond, M. R. ; Almer, J. D. ; Mummery, P. M. / Elastic strains in antler trabecular bone determined by synchrotron X-ray diffraction. In: Acta Biomaterialia. 2008 ; Vol. 4, No. 6. pp. 1677-1687.

Bibtex

@article{62b620e40a3345e29ceeef871e3e178b,
title = "Elastic strains in antler trabecular bone determined by synchrotron X-ray diffraction",
abstract = "The microstructure and associated mechanical properties of antler trabecular bone have been studied using a variety of techniques. The local trabeculae properties, as well as the three-dimensional architecture were characterized using nanoindentation and X-ray microtomography, respectively. An elastic modulus of 10.9 ± 1.1 GPa is reported for dry bone, compared with 5.4 ± 0.9 GPa for fully hydrated bone. Trabeculae thickness and separation were found to be comparable to those of bovine trabecular bone. Uniaxial compression conducted in situ during X-ray microtomography showed that antler can undergo significant architectural rearrangement, dominated by trabeculae bending and buckling, due to its low mineral content. High-energy synchrotron X-ray diffraction was used to measure elastic strains in the apatite crystals of the trabeculae, also under in situ uniaxial compression. During elastic loading, strain was found to be accommodated largely by trabeculae aligned parallel to the loading direction. Prior to the macroscopic yield point, internal strains increased as trabeculae deformed by bending, and load was also found to be redistributed to trabeculae aligned non-parallel to the loading direction. Significant bending of trabecular walls resulted in tensile strains developing in trabeculae aligned along the loading direction. {\textcopyright} 2008 Acta Materialia Inc.",
keywords = "Antler, Apatite strains, Compression, Synchrotron X-ray diffraction, Trabecular bone",
author = "R. Akhtar and Daymond, {M. R.} and Almer, {J. D.} and Mummery, {P. M.}",
note = "Akhtar, R. Daymond, M. R. Almer, J. D. Mummery, P. M.",
year = "2008",
month = nov,
doi = "10.1016/j.actbio.2008.05.008",
language = "English",
volume = "4",
pages = "1677--1687",
journal = "Acta Biomaterialia",
issn = "1742-7061",
publisher = "Elsevier BV",
number = "6",

}

RIS

TY - JOUR

T1 - Elastic strains in antler trabecular bone determined by synchrotron X-ray diffraction

AU - Akhtar, R.

AU - Daymond, M. R.

AU - Almer, J. D.

AU - Mummery, P. M.

N1 - Akhtar, R. Daymond, M. R. Almer, J. D. Mummery, P. M.

PY - 2008/11

Y1 - 2008/11

N2 - The microstructure and associated mechanical properties of antler trabecular bone have been studied using a variety of techniques. The local trabeculae properties, as well as the three-dimensional architecture were characterized using nanoindentation and X-ray microtomography, respectively. An elastic modulus of 10.9 ± 1.1 GPa is reported for dry bone, compared with 5.4 ± 0.9 GPa for fully hydrated bone. Trabeculae thickness and separation were found to be comparable to those of bovine trabecular bone. Uniaxial compression conducted in situ during X-ray microtomography showed that antler can undergo significant architectural rearrangement, dominated by trabeculae bending and buckling, due to its low mineral content. High-energy synchrotron X-ray diffraction was used to measure elastic strains in the apatite crystals of the trabeculae, also under in situ uniaxial compression. During elastic loading, strain was found to be accommodated largely by trabeculae aligned parallel to the loading direction. Prior to the macroscopic yield point, internal strains increased as trabeculae deformed by bending, and load was also found to be redistributed to trabeculae aligned non-parallel to the loading direction. Significant bending of trabecular walls resulted in tensile strains developing in trabeculae aligned along the loading direction. © 2008 Acta Materialia Inc.

AB - The microstructure and associated mechanical properties of antler trabecular bone have been studied using a variety of techniques. The local trabeculae properties, as well as the three-dimensional architecture were characterized using nanoindentation and X-ray microtomography, respectively. An elastic modulus of 10.9 ± 1.1 GPa is reported for dry bone, compared with 5.4 ± 0.9 GPa for fully hydrated bone. Trabeculae thickness and separation were found to be comparable to those of bovine trabecular bone. Uniaxial compression conducted in situ during X-ray microtomography showed that antler can undergo significant architectural rearrangement, dominated by trabeculae bending and buckling, due to its low mineral content. High-energy synchrotron X-ray diffraction was used to measure elastic strains in the apatite crystals of the trabeculae, also under in situ uniaxial compression. During elastic loading, strain was found to be accommodated largely by trabeculae aligned parallel to the loading direction. Prior to the macroscopic yield point, internal strains increased as trabeculae deformed by bending, and load was also found to be redistributed to trabeculae aligned non-parallel to the loading direction. Significant bending of trabecular walls resulted in tensile strains developing in trabeculae aligned along the loading direction. © 2008 Acta Materialia Inc.

KW - Antler

KW - Apatite strains

KW - Compression

KW - Synchrotron X-ray diffraction

KW - Trabecular bone

U2 - 10.1016/j.actbio.2008.05.008

DO - 10.1016/j.actbio.2008.05.008

M3 - Article

VL - 4

SP - 1677

EP - 1687

JO - Acta Biomaterialia

JF - Acta Biomaterialia

SN - 1742-7061

IS - 6

ER -