## Mohr Stress Circle When an Element is Subjected To Normal Stress Only

For drawing mohr stress circle,the normal stresses are represented along x-axis and shear stresses along y-axis. The Mohr stress circle is drawn, as shown in figure,with its center at a distance of (𝞼1+ 𝞼3 )/2 and radius equal to (𝞼1 - 𝞼3 )/2 .

Mohr Circle |

Where 𝞼1 & 𝞼3 are the major and minor principal stresses respectively .A point M on this circle,subtending an angle 2α at the center C, will represent the stresses on the plane which was making an angle α with the major principle plane .

In other words the co-ordinates of this point would be equal to shear stress (𝞃 )and normal stress (𝞼)