## 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 the y-axis. The Mohr stress circle is drawn, as shown in the figure, with its center at a distance of (𝞼1+ 𝞼3 )/2 and radius equal to (𝞼1 - 𝞼3 ) /2.

Mohr Stress 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 principal plane.

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In other words, the coordinates of this point would be equal to shear stress (𝞃 )and normal stress (𝞼).

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