scholarly journals Direct Determination of the Dynamic Elastic Modulus and Poisson's Ratio of Timoshenko Prisms and Rods

2019 ◽  
Author(s):  
Guadalupe Leon
Keyword(s):  
Elastic Modulus ◽  
Poisson’S Ratio ◽  
Direct Determination ◽  
Poisson's Ratio ◽  
Dynamic Elastic Modulus

Experimental Determination of the Poisson's Ratio and the Elastic Modulus of a Sand-Plastic Composite Material

2017 ◽  
Vol 6 (6) ◽  
pp. 292 ◽  
Author(s):  
Moro Olivier Boffoue ◽  
Brahiman Traore ◽  
Conand Honoré Kouakou ◽  
Kokou Esso Atcholi ◽  
Remy Lachat ◽  
...  
Keyword(s):  
Composite Material ◽  
Elastic Modulus ◽  
Experimental Determination ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Plastic Composite

On the Indentation Testing of Articular Cartilage: Determination of the Effective Poisson’s Ratio Using Two Different-Sized Punches

2008 ◽  
Author(s):  
Eugene T. Kepich ◽  
Roger C. Haut
Keyword(s):  
Articular Cartilage ◽  
Poisson’S Ratio ◽  
Direct Determination ◽  
Collagen Fibers ◽  
Poisson's Ratio ◽  
Compression Tests ◽  
Unconfined Compression ◽  
Collagen Network ◽  
Lateral Expansion

Effective Poisson’s ratio (EPR) of articular cartilage in compression is an important parameter, which is inversely correlated with stiffness of the collagen fibers [1]; and thus, if known, could provide valuable information about integrity of the collagen network in the tissue. Unfortunately, direct determination of the EPR by measuring lateral expansion during unconfined compression tests [2], while being effective, due to it’s destructive nature many times is not desired and/or hard to apply in practice. Optically-determined values of equilibrium EPR for bovine humeral articular cartilage using this method are reported to be in range 0.185±0.0065.

Determination of elastic modulus and Poisson’s ratio of diamond-like carbon films

1999 ◽  
Vol 341 (1-2) ◽  
pp. 207-210 ◽  
Author(s):  
Sung-Jin Cho ◽  
Kwang-Ryeol Lee ◽  
Kwang Yong Eun ◽  
Jun Hee Hahn ◽  
Dae-Hong Ko
Keyword(s):  
Elastic Modulus ◽  
Poisson’S Ratio ◽  
Carbon Films ◽  
Poisson's Ratio ◽  
Diamond Like Carbon

The Elastic Modulus and Poisson's Ratio of Laminated Bamboo Guadua angustifolia

2015 ◽  
Vol 668 ◽  
pp. 126-133 ◽  
Author(s):  
Caori Patricia Takeuchi ◽  
Martin Estrada ◽  
Dorian Luis Linero
Keyword(s):  
Elastic Modulus ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Vascular Bundles ◽  
Compression Tests ◽  
Laminated Bamboo ◽  
Group 2 ◽  
Natural Composite

Laminated bamboo is a natural composite material with cellulose fibers, parenchyma cells, and vascular bundles. The mechanical characterization of this material includes not only the determination of its strength, but also of its elastic constants. Given the anisotropic nature of the laminated material, compression tests were performed on three groups of specimens. The elastic modulus in the load direction and the Poisson's ratio were determined, and the results showed that the material's physical anisotropy causes an anisotropic mechanical behavior. The average values obtained for the elastic modulus ranged from 30044 MPa for group 1 to 265 MPa for group 2. The results of the test to determine the Poisson's ratio in compression perpendicular to the fibers, ranged from 0.013 to 0.278 whereas those obtained in compression parallel to the fibers, ranged from 0.621 to 1.506.

scholarly journals Measurement of Dynamic Elastic Modulus and Poisson’s Ratio of Chemically Strengthened Glass

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5644
Author(s):  
Sun-Youn Ryou ◽  
Chang-Soon Lee ◽  
In-Sik Cho ◽  
Auezhan Amanov
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Poisson’S Ratio ◽  
Bending Strength ◽  
Poisson's Ratio ◽  
Dynamic Elastic Modulus ◽  
Shear Moduli ◽  
Strengthened Glass ◽  
Basic Measurement ◽  
Chemical Strengthening

Glass with strong durability and transparency has been in the spotlight in various fields, including displays. Elastic and shear moduli and Poisson’s ratio are important properties of glasses. The purpose of this study is to evaluate the change in mechanical properties, such as the dynamic elastic modulus and Poisson’s ratio, with respect to the chemical strengthening time of glass for display applications, as measured by static and dynamic methods. The basic measurement principle of the dynamic method is to measure acoustic speed or resonant frequency using an ultrasonic generator. The mechanical properties of both non-strengthened and chemically strengthened glasses were investigated. It was found that the strength of the chemically strengthened glass decreased when chemical strengthening time increased. Chemical strengthening increased the bending strength and decreased the elastic modulus due to the introduction of compressive residual stress at the surface.

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