Difference between elastic and plastic deformation, Other Engineering

Assignment Help:

Q. State difference between elastic and plastic deformation.

Ans. Elastic deformation: Elastic deformation is that the part of the deformed material, when the applied load is removed, would spring to its normal shape. The elastic deformation takes place of low stress and having following characteristic:

(a)   Reversible

(b)  Usually very small

(c)   Obeys the hook's law i.e. stress is proportional to strain

Plastic deformation: In the plastic deformation, the material will not obeys the hook's law. This deformatio9n is set generally 40% melting temperature of that material and depends on applied load, rate of strain; temperature etc. during the plastic deformation, the metal follows the following relation i.e.

 

                                                    P=k e η

 

                  Where p=stresses; k=strength coefficient; η=power factor

          Elastic Deformation

            Plastic Deformation

1.       It is first stage of deformation.

It is second stage of deformation i.e. after the elastic deformation.

2.       It disappears after the removal of load.     

Not disappear even the load is removed.

3.       It is temporary.

It is permanent.

 

4.       It is reversible.

It is irreversible.

5.       Elastic deformation is practically small and produced strain in the order of 0.5% only.

Plastic deformation is high and the strain produced is also quite high.

6.        Stress-strain relationship is given by a constant.

There is no such well defined constant in plastic deformation.

7.        After this next stage is plastic deformation.

After this next stage is plastic fracture.


Related Discussions:- Difference between elastic and plastic deformation

DSP HW1, With x[n] denoting the input signal and y[n] denoting the output s...

With x[n] denoting the input signal and y[n] denoting the output signal, give the difference equation relating the input signal to the output signal in the discrete-time domain, gi

Propeller balance, PROPELLER BALANCE There are two types of balance of ...

PROPELLER BALANCE There are two types of balance of importance when working with propellers: • Static Balance • Dynamic Balance Static balance is checked and corrected

Aviation legislation - permit to fly, PERMIT TO FLY A Permit to Fly may...

PERMIT TO FLY A Permit to Fly may be issued to an aircraft that does not, for a variety of reasons, fully comply for a Certificate of Airworthiness. These reasons might be b

Duct with flow control-aircraft maintenance, Duct With Flow Control-Aircraf...

Duct With Flow Control-Aircraft maintenance: BERNOULLI'S THEOREM This theorem can be related to the relationship between pressure and velocity existing in the air flowing

Physical significance of wave function , Wave function is a complex quantit...

Wave function is a complex quantity, which itself has no physical significance. But square of its magnitude gives the probability of finding a particle in a given volume of space a

Accurate design of heat transfer systems, Hollow cylinders are useful build...

Hollow cylinders are useful building structures commonly used for both industrial and domestic purposes. Tanks, cars and some transport machineries are all applications of inner-in

Matlab, Provided a 1D array of integers, find all combinations of 3 values ...

Provided a 1D array of integers, find all combinations of 3 values from this set such that: a+b+c=0 For example, if one were provided with the set [3 1 3 -4 -6], the resulting answ

Causes of unbalance - aircraft design, Causes of unbalance Unbalance ma...

Causes of unbalance Unbalance may be caused by a variety of factors occurring singly or in combination with others. These factors include:- a) Eccentricity Eccentricity

Electronics, square wave generator using op amp

square wave generator using op amp

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