Solved examples from **mechanics of materials** about designation of stress in rods. On this it’s possible to find various examples in which stress in rods is designated. Examples which are placed here you can learn following:

• designation of equilibrium equations

• application of Hooke’s law

• designation of maximum stress

## Designation of stress in the rods – example 1

Three rods are screwed on separately to the ceiling. Second ends of rods are connected together in one point. In connection point works a force P. Force P is directed down. All rods under work of force P are **stretched**. In exercise we will designate equilibrium equations. **Hooke’s law** will also be used. Subject of example is to find minimum value of rod’s section area which will provide enough strength.

Stress in the rods during squeezing and stretching – example 1

## Designation of stress in the rods – example 2

Two rods are screwed on separately to the wall. Third rod is fixed to the ceiling. Second ends of rods are connected together in one point. Force P works in point of connection. Force P is directed down. Two rods under work of force P are stretched. One rod is squeezed In exercise we will designate equilibrium equations. **Hooke’s law** will also be used. Subject of example is to find minimum value of rod’s section area which will provide **enough strength**.

Stress in the rods during squeezing and stretching – example 2