Q.1:Answer only one from a & b: a: At a certain point in a stressed body, the stresses are ox= 30 MPa, oy -20 MPa, Txy = 45 MPa Show the results on Mohr's circle and and Tyx = -45 MPa. Determine the normal and shearing stresses on the planes with normals are at 45° and 135° clock wise with the X- axis. complete sketche of defferential element. draw the shear force

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A: For solution refer below images.

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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.