Lattice strains and load partitioning in bovine trabecular bone

R. Akhtar; M. R. Daymond; J. D. Almer; P. M. Mummery

doi:10.1016/j.actbio.2010.10.007

Lattice strains and load partitioning in bovine trabecular bone

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

Research output: Contribution to journal › Article › peer-review

Abstract

Microdamage and failure mechanisms have been well characterized in bovine trabecular bone. However, little is known about how elastic strains develop in the apatite crystals of the trabecular struts and their relationship with different deformation mechanisms. In this study, wide-angle high-energy synchrotron X-ray diffraction has been used to determine bulk elastic strains under in situ compression. Dehydrated bone is compared to hydrated bone in terms of their response to load. During compression, load is initially borne by trabeculae aligned parallel to loading direction with non-parallel trabeculae deforming by bending. Ineffective load partitioning is noted in dehydrated bone whereas hydrated bone behaves like a plastically yielding foam. © 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	716-723
Number of pages	7
Journal	Acta Biomaterialia
Volume	7
Issue number	2
DOIs	https://doi.org/10.1016/j.actbio.2010.10.007
Publication status	Published - Feb 2011

Keywords

Apatite strains
Bovine
Compression
Synchrotron X-ray diffraction
Trabecular bone

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10.1016/j.actbio.2010.10.007

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title = "Lattice strains and load partitioning in bovine trabecular bone",

abstract = "Microdamage and failure mechanisms have been well characterized in bovine trabecular bone. However, little is known about how elastic strains develop in the apatite crystals of the trabecular struts and their relationship with different deformation mechanisms. In this study, wide-angle high-energy synchrotron X-ray diffraction has been used to determine bulk elastic strains under in situ compression. Dehydrated bone is compared to hydrated bone in terms of their response to load. During compression, load is initially borne by trabeculae aligned parallel to loading direction with non-parallel trabeculae deforming by bending. Ineffective load partitioning is noted in dehydrated bone whereas hydrated bone behaves like a plastically yielding foam. {\textcopyright} 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.",

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AU - Daymond, M. R.

AU - Almer, J. D.

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AB - Microdamage and failure mechanisms have been well characterized in bovine trabecular bone. However, little is known about how elastic strains develop in the apatite crystals of the trabecular struts and their relationship with different deformation mechanisms. In this study, wide-angle high-energy synchrotron X-ray diffraction has been used to determine bulk elastic strains under in situ compression. Dehydrated bone is compared to hydrated bone in terms of their response to load. During compression, load is initially borne by trabeculae aligned parallel to loading direction with non-parallel trabeculae deforming by bending. Ineffective load partitioning is noted in dehydrated bone whereas hydrated bone behaves like a plastically yielding foam. © 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

KW - Apatite strains

KW - Bovine

KW - Compression

KW - Synchrotron X-ray diffraction

KW - Trabecular bone

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DO - 10.1016/j.actbio.2010.10.007

M3 - Article

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EP - 723

JO - Acta Biomaterialia

JF - Acta Biomaterialia

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ER -

Lattice strains and load partitioning in bovine trabecular bone

Abstract

Keywords

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