1. Find the strain that results from a tensile force of 1000 N applied to a 10 m long aluminium barhaving cross-sectional area of 4x10 m2. The modulus of elasticity of aluminium is 69 GN/m².2 A resistance wire strain gauge having a nominal resistance of 350 2 is subjected to a strain of 500micro-strain. Find the change in the value of resistance neglecting the piezoresistive effect.

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1. Find the strain that results from a tensile force of 1000 N applied to a 10 m long al having cross-sectional area of 4x10 m2. The modulus of elasticity of aluminium is 69 2 A resistance wire strain gauge having a nominal resistance of 350 2 is subjected to a

1. Find the strain that results from a tensile force of 1000 N applied to a 10 m long al having cross-sectional area of 4x10 m2. The modulus of elasticity of aluminium is 69 2 A resistance wire strain gauge having a nominal resistance of 350 2 is subjected to a

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.6.7P: A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The...

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

1. Find the strain that results from a tensile force of 1000 N applied to a 10 m long aluminium bar
having cross-sectional area of 4x10 m2. The modulus of elasticity of aluminium is 69 GN/m².
2 A resistance wire strain gauge having a nominal resistance of 350 2 is subjected to a strain of 500
micro-strain. Find the change in the value of resistance neglecting the piezoresistive effect.

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