Elastic limit, Mechanical Engineering

Elastic Limit:

Sol. : When external force acts on the body, the body tends to undergo some deformation. If external force is removed and body comes back to its original shape and size (that the deformation disappears completely), the body is called as elastic body. This property, by virtue of which certain materials return back to their original position after the removal of the external force, is called elasticity.

The body will regain its previous shape and size only when the deformation caused by the external force, is within certain limit. Thus there is limiting value of force up to and within which, deformation disappears completely on the removal of the force. The value of stress corresponding to limiting force is called as the elastic limit of the material.

If the external force is large so that the stress exceeds elastic limit, the material loses to some extent the property of its elasticity. If force is removed now, the material will not return to the origin shape of it and size and there will be residual deformation in material.

 

Posted Date: 10/20/2012 7:38:39 AM | Location : United States







Related Discussions:- Elastic limit, Assignment Help, Ask Question on Elastic limit, Get Answer, Expert's Help, Elastic limit Discussions

Write discussion on Elastic limit
Your posts are moderated
Related Questions
Determine the elongation of plate: Q: A steel bar AB which is having uniform thickness 2 cm, tapers from 1.5 cm to 7.5 cm uniformly in a length of 50 cm. From 1 st principle

If Equivalent force F and F acting on rigid body are not in line Sol.: If equivalent force of same magnitude 'F' acting on the rigid body are not in line, then there is no c

Explain construction and working of calomel electrode

what is the working princile of high preesure die casting process

why compression molding process is impractable for thermoplastics?

a) A pair of 20 degree full depth involute spur gears having 30 and 50 teeth respectively of module 4mm are in mesh. The smaller gear rotates at 1000 rpm. Determine- 1) Contact

what is importance of process planning?

Q. Design Air Coolers for plant layout? As air coolers (sometimes called aerial coolers, or fin-fans) have extensive heat transfer surfaces, they are more vulnerable to failure

Hodgkin-Huxley Fast Subsystem 1. Explain why replacing the extracellular Na + with choline has little effect on the resting potential of an axon. Calculate the new resting po

Define Essentials of Milling Fixture? Strength of withstand heavy forces. Thrust should be directed towards a strong, solid structure. Cutter setting piece should b