A prismatic steel bar of square cross section 3 in. x 3 in. is subjected to a tensile load P = 135 kips. Determine the normal and shear stresses in the four faces of a member rotated through an angle θθ= 45°. Show the result in a properly oriented effort element. Work in English system

Q: 50 MPa 60 MPa 100 MPa α ให้ 70 MPa

A: Given -To Find-

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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.