The principal stresses at a point across two mutually perpendicular planes are 70 MN/m2 tension and 55 MN/m2 tension respectively. The shear stress across these planes is 25 MN/m2 (Counter clockwise). Determine the magnitude of the normal, tangential, the resultant stress, and inclination of resultant stress on a plane inclined at 25o to the plane of greater principal stress. And also verify the answer by drawing the Mohr’s circle.

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Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.