Force-A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.

WE CAN CLASSIFY FORCES INTO TWO CATEGORIES

1. CONTACT

2. NON CONTACT

Thus this formula may be used as

Stresses = applied Force / Cross sectional area { Deformation <<<)

Longitudinal strain: If the deforming force produces a change in length alone, the strain produced in the body is called longitudinal strain or tensile strain.

If the deforming force produces a change in volume alone, the strain produced in the body is called volumetric strain.

The angle tilt caused in the body due to tangential stress expressed is called shear strain.

Hooks Law: Strain is directly proportional To Stress under elastic limit.

It is defined as the ratio of tensile

stress or compressive stress to the corresponding strain within elastic limit. It

is denoted by symbol E. It is also known as modulus of elasticity or elastic modulus.

It is defined as the ratio of shear stress to

corresponding shear strain within elastic limit. It is also known as shear modulus. It

is represented by C or G or N.

It is defined as the ratio of direct stress to the

corresponding volumetric strain within elastic limit. It is denoted by K.

How to set up your own website - More here