Question

Dfine factor of safety and its significance

Answer 1

Step-by-step explanation:

Step1

Factor of safety is the constant factor which is taken for the safe design of any product. It is the ratio of maximum stress induced in the material or the failure stress from tensile test to the allowable stress.

Step2

It is an important parameter for design of any component. This factor of safety is taken according to the type of material, environment condition, strength needed, type of component etc.

The expression for factor of safety is given as follows:

`FOS=(\sigma_(f))/(\sigma_(a))`

Here,
`\sigma_(f)` is fracture stress and
`\sigma_(a)` is allowable stress.