Journal ArticleDOI
Elastic properties of human cortical and trabecular lamellar bone measured by nanoindentation
TLDR
An experimental investigation was undertaken to measure the intrinsic elastic properties of several of the microstructural components of human vertebral trabecular bone and tibial cortical bone by the nanoindentation method, and differences in the measured moduli are statistically significant.About:
This article is published in Biomaterials.The article was published on 1997-10-01. It has received 867 citations till now. The article focuses on the topics: Cortical bone & Nanoindentation.read more
Citations
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Journal ArticleDOI
Mechanical properties and the hierarchical structure of bone
TL;DR: Further investigations of mechanical properties at the "materials level", in addition to the studies at the 'structural level' are needed to fill the gap in present knowledge and to achieve a complete understanding of the mechanical properties of bone.
Journal ArticleDOI
Comparison of the elastic and yield properties of human femoral trabecular and cortical bone tissue.
Harun H. Bayraktar,Elise F. Morgan,Glen L. Niebur,Grayson Morris,Eric K. Wong,Tony M. Keaveny +5 more
TL;DR: While the elastic modulus and yield strains for trabecular tissue are just slightly lower than those of cortical tissue, because of the cumulative effect of these differences, tissue strength is about 25% greater for cortical bone.
Journal ArticleDOI
Elastic modulus and hardness of cortical and trabecular bone lamellae measured by nanoindentation in the human femur
TL;DR: In this paper, an isotropic elastic modulus was calculated from the unloading curve with an assumed Poisson ratio of 0.3, while hardness was defined as the maximal force divided by the corresponding contact area.
Journal ArticleDOI
State of the art and future directions of scaffold-based bone engineering from a biomaterials perspective.
Dietmar W. Hutmacher,Jan-Thorsten Schantz,Christopher X. F. Lam,Kim Cheng Tan,Thiam Chye Lim +4 more
TL;DR: The important properties of the biomaterials and the scaffold design in the making of tissue engineered bone constructs are discussed in detail, with special emphasis placed on the new material developments, namely composites made of synthetic polymers and calcium phosphates.
Journal ArticleDOI
The mechanical properties and osteoconductivity of hydroxyapatite bone scaffolds with multi-scale porosity.
Joseph R. Woodard,Amanda J. Hilldore,Sheeny K. Lan,Chan J. Park,Abby W. Morgan,Jo Ann C. Eurell,Sherrie G. Clark,Matthew B. Wheeler,Russell D. Jamison,Amy J. Wagoner Johnson +9 more
TL;DR: The study demonstrates the importance of scaffold microporosity on bone ingrowth and on the mechanical behavior of HA implant materials and demonstrates the efficacy of the MP scaffolds as drug carriers.
References
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Journal ArticleDOI
An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more
TL;DR: In this paper, the authors used a Berkovich indenter to determine hardness and elastic modulus from indentation load-displacement data, and showed that the curve of the curve is not linear, even in the initial stages of the unloading process.
Journal ArticleDOI
A method for interpreting the data from depth-sensing indentation instruments
M. F. Doerner,William D. Nix +1 more
TL;DR: In this paper, a method for obtaining hardness and Young's modulus from the data obtained from these types of instruments is described, where the elastic displacements are determined from data obtained during unloading of the indentation.
Journal ArticleDOI
Young's modulus of trabecular and cortical bone material: ultrasonic and microtensile measurements.
TL;DR: The results suggest that when considered mechanically, cortical and trabecular bone are not the same material.
Journal ArticleDOI
Measurement of thin film mechanical properties using nanoindentation
George M. Pharr,Warren C. Oliver +1 more
TL;DR: Nanoindentation has become one of the most widely used techniques for measuring the mechanical properties of thin films as discussed by the authors, and has been shown to be useful in the study of optical coatings, hard coatings and materials modified by ion implantation and laser treatment.
Journal ArticleDOI
The elastic moduli of human subchondral, trabecular, and cortical bone tissue and the size-dependency of cortical bone modulus
TL;DR: The surface area to volume ratio proved to be a key variable to explain the size-dependency of the modulus and the values decreased as the specimens became smaller, whereas for relatively large specimens, the values remained fairly constant.
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An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
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