## 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 centre at a distance of ( πΌ1 + πΌ3)/2 and ( πΌ1 β πΌ3)/2.

Where πΌ1 &Β πΌ3 are the major and minor principal stresses respectively. A point M on this circle, subtending an angle 2Ξ± at the center C, will represent the stresses on the plane which was making an angleΒ Ξ± with the major principal plane. Β

**In other words**, the coordinates of this point would be equal to shear stress (π )and normal stressΒ (πΌ).

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Mohr-Coulomb Failure Theory(Criterion)