While testing a metallic rod, it is observed that the diameter of the rod is reduced by 0.0025 mm at an axial pull of 20 kN. The original diameter of the rod is 15 mm. Find the Young's modulus. The rigidity modulus is 50 kN/mm².

While testing a metallic rod, it is observed that the diameter of the rod is reduced by 0.0025 mm at an axial pull of 20 kN. The original diameter of the rod is 15 mm. Find the Young's modulus. The rigidity modulus is 50 kN/mm².

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Laws of Equilibrium

A body is said to be in equilibrium if the system of forces acting on the body tends to keep the body at rest, in other words, there is no translation motion or net torque on the body. Under such conditions, the equilibrium conditions are to be applied to analyze the condition. The branch of mechanics that deals with this condition is known as 'statics'. Under equilibrium, there are no net forces on the body.

Question

While testing a metallic rod, it is observed that the diameter of the rod is reduced by 0.0025 mm
at an axial pull of 20 kN. The original diameter of the rod is 15 mm. Find the Young's modulus.
The rigidity modulus is 50 kN/mm².

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