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Elastic deformation returns to it's orginal shape after a strain is applied.

Plastic deformation returns to a deformed shape after a strain is applied. The material's molecular bonds are strained to the point of fracture, making it not possible to return to the same state.

2007-06-13 08:43:19 · answer #1 · answered by Anonymous · 3 0

A temporary shape change that is self-reversing after the force is removed, so that the object returns to its original shape, is called elastic deformation. In other words, elastic deformation is a change in shape of a material at low stress that is recoverable after the stress is removed.

Examples would be the loading of a bridge or building support beam where the loads remain within the original design parameters, or the use of a safety pin where when it is opened it returns to it's unloaded shape.

When the stress is sufficient to permanently deform the metal, it is called plastic deformation.

Examples would be the building support beams for the twin towers, where the heat generated by the fires decreased the strength of the steel and allowed it to deform plastically, or the loads that are applied to a section of electrical conduit or mechanical piping in order to bend them into a specific shape.

2007-06-13 08:54:30 · answer #2 · answered by gatorbait 7 · 2 0

elastic deformation occur either when the force applied is insufficient or or the material reach to the smallest size after which no size reduction occur even if the force is increased but in plastic deformation the shape of the material is changed by application of high force

2015-06-29 22:10:00 · answer #3 · answered by ? 1 · 0 0

Elastic deformation will return to its original shape. Plastic deformation is when you alter the original form. To understand more on this subject you might investigate failure analysis literature. Lots of good stuff there ratchet marks, beach marks, reverse bending etc...
I believe the U.S. metallurgical society has the best reference material on this subject.

2007-06-16 02:28:28 · answer #4 · answered by The engineer 1 · 0 0

the elastic deformation happens in yeild point
and elastic deformation back to original size but plastic deformation will not back tto original size

2007-06-13 12:48:30 · answer #5 · answered by Anonymous · 0 0

in elastic def. , the material returns to its original shape once force is removed. in plastic, the deformation is permanent and the material doesn't return to its original shape

2007-06-13 10:05:11 · answer #6 · answered by adventurous_mango 2 · 0 0

find the book , dont be lazy :)

2015-03-08 15:40:14 · answer #7 · answered by haiqal bin hamizan 1 · 0 0

hahahahahhah :D

2015-02-13 07:55:22 · answer #8 · answered by ? 1 · 0 0

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