A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Fabric Anisotropy Effect on Elastic and Yield behavior of the Human Calcaneus Trabecular Bone
In this study, the local variability of microarchitecture of human trabecular calcaneus bone is investigated using high-resolution microCT scanning. Our results show that strong correlation exists between most scalar architectural parameters and volumetric bone mineral density (vBMD). However, no statistical correlation was found between vBMD and the fabric components. Therefore, only fabric components explain the data variance that cannot be explained by vBMD. This study demonstrates that a multi-directional, fabric-dependent, poroelastic ultrasound approach has the capability of characterizing anisotropic bone properties beyond bone mass, and could help better understand anisotropic changes in bone architecture using ultrasound. Moreover, the apparent modulus of elasticity, yield strain and stress of trabecular human calcanei along multiple directions are measured using microFEM. The results show that fabric tensor is highly correlated to the modulus of elasticity (R2 = 0.62) and yield stress (R2 = 0.58), but poorly correlated to yield strain (R2 = 0.16).
The Fabric Anisotropy Effect on Elastic and Yield behavior of the Human Calcaneus Trabecular Bone
In this study, the local variability of microarchitecture of human trabecular calcaneus bone is investigated using high-resolution microCT scanning. Our results show that strong correlation exists between most scalar architectural parameters and volumetric bone mineral density (vBMD). However, no statistical correlation was found between vBMD and the fabric components. Therefore, only fabric components explain the data variance that cannot be explained by vBMD. This study demonstrates that a multi-directional, fabric-dependent, poroelastic ultrasound approach has the capability of characterizing anisotropic bone properties beyond bone mass, and could help better understand anisotropic changes in bone architecture using ultrasound. Moreover, the apparent modulus of elasticity, yield strain and stress of trabecular human calcanei along multiple directions are measured using microFEM. The results show that fabric tensor is highly correlated to the modulus of elasticity (R2 = 0.62) and yield stress (R2 = 0.58), but poorly correlated to yield strain (R2 = 0.16).
The Fabric Anisotropy Effect on Elastic and Yield behavior of the Human Calcaneus Trabecular Bone
Souzanchi, M. F. (author) / Palacio-Mancheno, P. E. (author) / Cardoso, L. (author) / Cowin, S. C. (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 1219-1228
2013-06-18
Conference paper
Electronic Resource
English
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