Stress Strain Relationship

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Stress Strain Relationship: Overview

This topic covers concepts, such as, Terms Related to Elasticity, Stress - Strain Graph, Strength of Material & Toughness of Material etc.

Important Questions on Stress Strain Relationship

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What is the reason of low toughness of grey cast iron

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 Which factor decreases toughness of material

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The property of a material which enables it to absorb energy and deform plastically without fracture is

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Which metal has maximum malleability.

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 The ability of a material to undergo plastic deformation without rupture, when a compressive force is applied, is known as 

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A typical stress-strain curve for a wire of a metal wire is shown below:

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If the point D and E are very close, the material is:

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Permanent set in a material is produced by subjecting it to

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Permanent set refers to:

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In a technical sense a substance with a _____ elasticity is one that requires a large force to produce a distortion-for example, a steel sphere. 
 

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Out of the following whose elasticity is independent of temperature;

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If you try to displace any ball from its equilibrium position, the spring system tries to restore the ball back to its original position.

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The temperature of a wire is 2 times . The Young’s modulus of elasticity.

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Diamond is a very good example of

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Define toughness of a material.

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Discuss Elasticity and Plasticity in solids with example.

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Two blocks of masses 1 kg and 2 kg are connected by a metal wire going over a smooth pulley as shown in the figure. The breaking stress of the metal is 2×109 N m-2. If the minimum radius of the wire used is r10×10-5 m so that it is not to break, find the value of r. Take, g=10 m s-2.

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Now, match the terms in Column I with corresponding terms in Column II.

  Column I   Column II
A Yield point p A
B Breaking point q B
C Ultimate strength point r C
D Proportionally limit point s D

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A steel cable with a radius of 1.5 cm supports a chairlift at a ski area. If the maximum stress is not to exceed 108Nm-2, what is the maximum load the cable can support?

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Determine the region where Hooke’s law is obeyed, the ultimate strength point and fracture point in the given stress-strain graph.

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Which of the following substance develops high strain when stretched ?