Elastic and Plastic deformation

Question 1

What will the elastic deformation show up to on a graph?

Answer 1

The elastic limit

Question 2

What is elastic deformation?

Answer 2

when the material will return to its original shape when the force is removed

Question 3

What is the scientific explanation for the elastic deformation:?

Answer 3

atoms are pulled and move slightly relative to equilibrium positions without changing positions relative to other atoms

Question 4

What occurs beyond the elastic limit?

Answer 4

Plastic deformation

Question 5

What is plastic deformation?

Answer 5

When the material is permanently stretched.

Question 6

What is the scientific explanation for plastic deformation?

Answer 6

this happens because some atoms change positions within the structure and when the force is removed do not return to original postions

Question 7

Up to the limit of proportionality is loading and unloading reversible?

Answer 7

YES

Question 8

What is the strange effect observed when the load is removed and later reloaded during the plastic phase of the material or object?

Answer 8

the wire regains springness and has the same stiffness as before , this an an important property of materials in engineering

Question 9

Where is this strange effect usually observed in every day life?

Answer 9

a car panel which is molded into a shape, which ragains stiffness and elasticity and can be further pressed