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Testing Tensile Strength with Normal Strain and Poisson's Ratio

Question

Normal strain and Poisson’s ratio

A tensile test is performed on a brass specimen 10 mm in diameter using a gauge length of 50 mm. When the tensile load P reaches a value of 20 kN, the distance between the gauge marks has increased by 0.122 mm. (a) What is the modulus of elasticity E of the brass? (b) If the diameter decreases by 0.00830 mm, what is Poisson’s ratio?
 
Summary

The question belongs to Mechanical Engineering and it is about calculating probability of a batch of brass specimens for tensile strength under normal and Poisson’s ratio. The solution has detailed calculations.

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