Poisson's ratio calculation and elastic modulus measurement
Poisson's ratio calculation and elastic modulus measurement background introduction
Poisson's ratio: The ratio of the transverse positive strain to the absolute value of the axial positive strain when the material is subjected to uniaxial tension or compression, also called the transverse deformation coefficient.
Εx=-μεy
Elastic Modulus: In the elastic deformation stage, the stress of the material should be proportional to the stress, and the proportional coefficient is called the elastic modulus.
E=F/A/ΔL/L=F*L/ΔL*A
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Calculation method:
1. Measuring the cross-sectional area of ​​the test piece
2. Select horizontal and vertical gauge lengths
3. Judging the elasticity phase, calculating Poisson's ratio and elastic modulus
Poisson's ratio calculation and elastic modulus measurement practical steps case
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