Experimental determination of Young modulus and Poisson ratio in cortical bone tissue using high resolution scanning acoustic microscopy and nanoindentation

2008 ◽  
Vol 123 (5) ◽  
pp. 3785-3785 ◽  
Author(s):  
Fabienne Rupin ◽  
Amena Saied ◽  
Davy Dalmas ◽  
Françoise Peyrin ◽  
Sylvain Haupert ◽  
...  
Keyword(s):  
High Resolution ◽  
Experimental Determination ◽  
Cortical Bone ◽  
Bone Tissue ◽  
Poisson Ratio ◽  
Young Modulus ◽  
Acoustic Microscopy ◽  
Scanning Acoustic Microscopy

85 Determination of Poisson Ratio and Young Modulus by Scanning Acoustic Microscopy Combined With Nanoindentation

2009 ◽  
Vol 12 (1) ◽  
pp. 124-125
Author(s):  
F. Rupin ◽  
A. Saïed ◽  
D. Dalmas ◽  
K. Raum ◽  
P. Laugier ◽  
...  
Keyword(s):  
Poisson Ratio ◽  
Young Modulus ◽  
Acoustic Microscopy ◽  
Scanning Acoustic Microscopy

Assessment of cortical bone microstructure and material properties using high resolution scanning acoustic microscopy

2004 ◽  
Vol 116 (4) ◽  
pp. 2491-2491
Author(s):  
Kay Raum ◽  
Florent Chandelier ◽  
Ingrid Leguerney ◽  
Maryline Talmant ◽  
Amena Saied ◽  
...  
Keyword(s):  
High Resolution ◽  
Cortical Bone ◽  
Material Properties ◽  
Bone Microstructure ◽  
Acoustic Microscopy ◽  
Scanning Acoustic Microscopy

Comparison of the viscoelastic penetration and tensile behaviour of poly(methyl acrylate) and poly(ethyl acrylate)

1979 ◽  
Vol 44 (6) ◽  
pp. 1942-1948 ◽  
Author(s):  
Jaroslav Hrouz ◽  
Michal Ilavský ◽  
Ivan Havlíček ◽  
Karel Dušek
Keyword(s):  
Methyl Acrylate ◽  
Poisson Ratio ◽  
Young Modulus ◽  
Ethyl Acrylate ◽  
Sample Volume ◽  
Viscoelastic Behaviour ◽  
Tensile Behaviour ◽  
Temperature Superposition ◽  
Main Transition

The viscoelastic penetration and tensile behaviour of poly(methyl acrylate) and poly(ethyl acrylate) in the main transition region have been investigated. It was found that the time-temperature superposition could be carried out in the case of the penetration viscoelastic behaviour; the temperature dependence of the penetration and tensile shift factors was the same. The superimposed curves of the penetration and Young modulus allowed us to calculate the dependence of the Poisson ratio and thus to characterize the change in sample volume with deformation. It was demonstrated that the penetration method of determination of the viscoelastic behaviour is equivalent to the tensile method.

Determination of the elastic properties of carbon thin films using scanning acoustic microscopy

1998 ◽  
Author(s):  
A. Pageler ◽  
Klaus Kosbi ◽  
Ulf G. Brauneck ◽  
Hans Gerd G. Busmann ◽  
Siegfried Boseck
Keyword(s):  
Thin Films ◽  
Elastic Properties ◽  
Acoustic Microscopy ◽  
Scanning Acoustic Microscopy ◽  
Carbon Thin Films

scholarly journals Analysis of Mechanical Properties and Mechanical Anisotropy in Canine Bone Tissues of Various Ages

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Changqi Luo ◽  
Junyi Liao ◽  
Zhenglin Zhu ◽  
Xiaoyu Wang ◽  
Xiao Lin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Cortical Bone ◽  
Bone Tissue ◽  
Poisson Ratio ◽  
Age Groups ◽  
Distal Region ◽  
Mechanical Anisotropy ◽  
Age Group ◽  
Cross Sectional

The effect of age on mechanical behavior and microstructure anisotropy of bone is often ignored by researchers engaged in the study of biomechanics. The objective of our study was to determine the variations in mechanical properties of canine femoral cortical bone with age and the mechanical anisotropy between the longitudinal and transverse directions. Twelve beagles divided into three age groups (6, 12, and 36 months) were sacrificed and all femurs were extracted. The longitudinal and transverse samples of cortical bone were harvested from three regions of diaphysis (proximal, central, and distal). A nanoindentation technique was used for simultaneously measuring force and displacement of a diamond tip pressed 2000nm into the hydrated bone tissue. An 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. The mechanical properties of cortical bone were determined from 852 indents on two orthogonal cross-sectional surfaces. Mean elastic modulus ranged from 7.56±0.32 GPa up to 21.56±2.35 GPa, while mean hardness ranged from 0.28±0.057 GPa up to 0.84±0.072 GPa. Mechanical properties of canine femoral cortical bone tended to increase with age, but the magnitudes of these increase for each region might be different. The longitudinal mechanical properties were significantly higher than that of transverse direction (P<0.01). A significant anisotropy was found in the mechanical properties while there was no significant correlation between the two orthogonal directions in each age group (r2<0.3). Beyond that, the longitudinal mechanical properties of the distal region in each age group were lower than the proximal and central regions. Hence, mechanical properties in nanostructure of bone tissue must differ mainly among age, sample direction, anatomical sites, and individuals. These results may help a number of researchers develop more accurate constitutive micromechanics models of bone tissue in future studies.

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