 # Mohr’s Circle (Stress and Strain Part-5)

#### Mohr’s circle is a graphical representation of a general state of stress at a point.

##### With the help of Mohr’s Circle, we can evaluate principal stress, maximum shear stresses, also normal and tangential stress at any plane.
Many questions come in exam related to principal stress and with help of Mohr’s circle they are solved in seconds.

### Let us now move to how we should proceed when we see a problem with Mohr’s circle: #### Step 1. Draw X & Y-Axis and mark both σx & σy on X-Axis. #### As in the above figure τxy at σx is trying to rotate body in anti clockwise direction, so according to our convention τxy will be downward and similarly for σy it will be upward. #### Now taking E as centre draw a circle with radius as CE=ED=r #### Step4. Radius of Mohr’s represents the maximum value of shear stress. ##### If we observe the Mohr’s circle centre of Mohr’s Circle is given by #### Radius of Mohr’s circle can be directly obtained by following formula: ### Related posts:

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