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Modulus of Elasticity, Young's Modulus, Average Properties of
Structural Materials, Shear Modulus, Poisson's Ratio,
Density
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Modulus of Elasticity also know as Young's Modulus is the mathematical description of an object or substance's tendency to be deformed elastically (i.e., non-permanently) when a force is applied to it. The elastic modulus of an object is defined as the slope of its stress-strain curve in the elastic deformation region:
 Where:
λ (lambda) = Elastic Modulus
stress = Restoring force caused due to the deformation divided by the area to which the force is applied
strain = Ratio of the change caused by the stress to the original state of the object
Material |
Modulus of Elasticity, E
(lb/in2 x 106) |
Shear Modulus
of Elasticity, G
(lb/in2 x 106) |
Poisson's Ratio
u |
Weight Density
(lb/in3) |
Aluminum Alloys |
10.2 |
3.9 |
0.33 |
0.098 |
Beryllium Copper |
18.0 |
7.0 |
0.29 |
0.30 |
Carbon Steel |
29.0 |
11.5 |
0.29 |
0.28 |
Cast Iron |
14.5 |
6.0 |
0.21 |
0.26 |
Inconel |
31.0 |
11.5 |
0.29 |
0.31 |
Magnesium |
6.5 |
2.4 |
0.35 |
0.07 |
Molybdenum |
48.0 |
17.1 |
0.31 |
0.37 |
Monel Metal |
26.0 |
9.5 |
0.32 |
0.32 |
Nickel Silver |
18.5 |
7.0 |
0.32 |
0.32 |
Nickel Steel |
29.0 |
11.0 |
0.29 |
0.28 |
Nylon |
1.5 |
0.6 |
- |
0.04 |
Phosphor Bronze |
16.1 |
6.0 |
0.35 |
0.30 |
Stainless Steel |
27.6 |
10.6 |
0.31 |
0.28 |
Titanium |
16.5 |
6.5 |
- |
0.16 |
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