Find out stress - strain and elongation of bar, Mechanical Engineering

Assignment Help:

Find out stress - strain and elongation of bar:

A circular rod having diameter 20 m and 500 m long is subjected to the tensile force of 45kN. The modulus of elasticity for steel can be taken as200 kN/m2. Find out stress, strain and elongation of bar because of applied load.            

Sol.: Given:

D = 20m

L = 500m

P = 45KN = 45000N

E = 200KN/m2 = (200 × 1000 N/mm2  = 200000 N/m2

By using the relation; σ = P/A  = P/(Π /4 × D2)

σ = 45000/( Π /4 × 202)

σ = 143.24 N/m2                                                                                    .......ANS

E = σ / e

200000 = 143.24 /e

e = 0.000716                                                               .......ANS

Now, e = dLA/L

0.000716 = dLA/500

dLA = 0.36                                                                        .......ANS


Related Discussions:- Find out stress - strain and elongation of bar

Explain the working of die casting, Q. Explain the working of Die Casting? ...

Q. Explain the working of Die Casting? In the die casting process the, mould used for a casting is permanent called a die casting. it is shown in figure. It is thus quite diffe

calculate the arc-belt length-distance and ratio , A powered metal-working...

A powered metal-working crank press (a generic press is shown at the end) has been designed to be capable of punching blanks from mild steel sheet up to 3 mm thick. 1. the ultim

Spray up method, Spray up method In a slight variation, to suit the ne...

Spray up method In a slight variation, to suit the necessity of bigger size parts the fibre resin and rovings are fed concurrently. The fibre rovings are fed via a chopper whe

Show continuity equation in cylindrical coordinates, Show continuity equati...

Show continuity equation in cylindrical coordinates. Also list the assumptions made. A fluid flow is given by V = xy 2 i - 2yz 2 j - (zy 2 - 2z 3 /3) k Determine acceleration

Resultant of non coplanar concurrent force system, Resultant of Non coplana...

Resultant of Non coplanar concurrent force system: How do you find resultant of Non coplanar concurrent force system? Sol.: The resultant of non concurrent force system

Graphics, offset method to draw parabola

offset method to draw parabola

Choke in motorcycle, Choke: This is incorporated in the main air passage a...

Choke: This is incorporated in the main air passage and used to control the air quantity to supply rich mixture. While starting an engine, the choke shuts off the air supply to th

Resistance welding electrodes and holders, Resistance welding electrodes an...

Resistance welding electrodes and holders Requisites For Electrodes : The resistance welding electrodes are meant for the following functions: Conducting electricity

Introduction to general safety and service tips , INTRODUCTION: Safety is ...

INTRODUCTION: Safety is very important which is often neglected at our workplaces. Small precautions if carried out regularly can ensure safe, hygienic and clean environment at ou

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd