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

#friction, the crate has a mass M and is subjectedto towing P acting at an ...

the crate has a mass M and is subjectedto towing P acting at an angle t1 with the horizontal.if the coefficient of static friction is k,determine the magnitude of p to just start

Financial managment, what is the consideration of time importance in financ...

what is the consideration of time importance in financial management? how can time time be adjust illustrate you?

Electronics., Limitations of shunt clippers

Limitations of shunt clippers

Financial management, Explain and identify the different sources of finance...

Explain and identify the different sources of finances which are available to businesses and which sources of finance are internal sources and which are external sources?

Blow hole and pin hole porosity, Difference between   Blow hole and pin hol...

Difference between   Blow hole and pin hole porosity          Blow hole : They appear as cavities in a casting. When they are visible on the upper surface of the castings, th

Providing fire resistant - fire safety management, Providing fire resistant...

Providing fire resistant: If the building does not provide everyone with alternative exit routes then it may be acceptable for people to pass the fire if they are separated f

7.3 satellite antenna, design a connectivity diagram for a 7.3 m satellite ...

design a connectivity diagram for a 7.3 m satellite antenna

Fire safety management for restaurants, Fire safety management for restaura...

Fire safety management for restaurants: Staff in restaurants must be aware that customers who have been served their food are always reluctant to leave that food and evacuate.

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