Describe the term stress and its different types?

When a material or a solid body is subjected to an external force, it offers a resistance. This resistance is called stress. Stress is a measure of the amount of force exerted per unit area of cross section. Mathematically it is expressed as:

Stress= P/A

Where P and A stands for Load and Area of Cross Section Respectively.

Types Of Stress:

*SELF TYPED
*SOURCE: Internet and Books