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Modulus of Elasticity

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A linear isotropic material has the shear modulus of elasticity G of 11.5*10^6 psi and the Poisson's constant v of 0.3. How do I determine the Young's modulus of elasticity E?

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Modulus of elasticity from stress-strain graph

The following data are for cold-worked carbon steel tested in a tensile test:

Original diameter: 12.725 mm
Final diameter: 8.433 mm
Original gauge length: 50.8 mm
Final gauge length: 60.71 mm

(Please see attached)

The maximum load was 74.3 kN. Plot the stress - strain graph and determine;
a. realistic estimation of the modulus of elasticity
b. relationship between stress and strain

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