Elastic and plastic behaviour

Need to know

What you need to know

• 6.2 Elastic and plastic behaviour.
• Elastic deformation is the deformation that occurs before the elastic limit.
• If you removed the load before this point, the object will return to its original shape.
• Plastic deformation is the deformation that occurs after the elastic limit.
• Load removal will not restore the object to its original shape.
• Recall that the area under a force-extension graph represents the work done to deform the material.

Explanation

Elastic and plastic behaviour

1. 6.2 Elastic and plastic behaviour.
2. Elastic deformation is the deformation that occurs before the elastic limit.
3. If you removed the load before this point, the object will return to its original shape.
4. Plastic deformation is the deformation that occurs after the elastic limit.