Question

The stress-strain graph of a material is shown in the figure. The region in which the material is elastic is ______.

 

Options

• OA

• OB

• OC

• AC

Answer 1

The stress-strain graph of a material is shown in the figure. The region in which the material is elastic is OA.

Explanation:

• The stress-strain curve represents the mechanical behavior of a material under applied stress.
• The elastic region is where the material returns to its original shape when the stress is removed.
• OA represents the linear elastic region, where stress is proportional to strain (following Hooke's Law).
• Beyond point A, the material enters the plastic region, meaning it undergoes permanent deformation.