What is difference between plasticity and perfect inelastic body?
What is difference between plasticity and perfect inelastic body?
Elasticity is defined as the property which enables a material to get back to (or recover) its original shape, after the removal of applied force.
For example… A Rubber Band, which can be stretched easily,
You may know that, as soon as the stretching force is removed it get back to its original shape. This is Elasticity.
But,
Plasticity is defined as the property which enables a material to be deformed continuously and permanently without rupture during the application of force. This deformation determines the viscous behavior of the material and is irrecoverable
Graphically, a material will undergo Elasticity and then follow to the Plasticity. And if the force is continuously applied, then we’ll find cracking on the material an will follow to the failure i.e., breakdown.
Plastic
Elastic
Definition
The property on account of which a body does not regain its original size and shape on removal of applied force is called as plastic body.
The property on account of which a body regains its original size and shape on removal of external deforming force is called as elastic body.
Process
It is irreversible.
It is reversible.
Ductility
They are highly ductile in nature.
It is less ductile in nature.
Resilience
They have low yield strength.
They have high yield strength.
Modulus of elasticity (ratio)
The ratio of stress to strain is high.
The ratio of stress to strain is low or equal.
Toughness
They do not have the ability to absorb energy up to a fracture.
They have the ability to absorb energy up to a fracture.
Bonds
The molecular bonds are fractured.
The molecular bonds do not get fractured.
Shape and size
The shape and size changes permanently.
The shape and size does change permanently,
Example
Plasticine.
Rubber.
Elasticity is defined as the property which enables a material to get back to (or recover) its original shape, after the removal of applied force.
For example… A Rubber Band, which can be stretched easily,
You may know that, as soon as the stretching force is removed it get back to its original shape. This is Elasticity.
But,
Plasticity is defined as the property which enables a material to be deformed continuously and permanently without rupture during the application of force. This deformation determines the viscous behavior of the material and is irrecoverable
Graphically, a material will undergo Elasticity and then follow to the Plasticity. And if the force is continuously applied, then we’ll find cracking on the material an will follow to the failure i.e., breakdown.
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| Plastic | Elastic |
| Definition | The property on account of which a body does not regain its original size and shape on removal of applied force is called as plastic body. | The property on account of which a body regains its original size and shape on removal of external deforming force is called as elastic body. |
| Process | It is irreversible. | It is reversible. |
| Ductility | They are highly ductile in nature. | It is less ductile in nature. |
| Resilience | They have low yield strength. | They have high yield strength. |
| Modulus of elasticity (ratio) | The ratio of stress to strain is high. | The ratio of stress to strain is low or equal. |
| Toughness | They do not have the ability to absorb energy up to a fracture. | They have the ability to absorb energy up to a fracture. |
| Bonds | The molecular bonds are fractured. | The molecular bonds do not get fractured. |
| Shape and size | The shape and size changes permanently. | The shape and size does change permanently, |
| Example | Plasticine. | Rubber. |
