Question

Where does the intensity of bending stress at any point in

• A. Area of cross-section of beam
• B. Length of beam
• C. Polar moment of inertia
• D. Distance of point from the neutral axis

Answer 1

Answer:

D. Distance of point from the neutral axis

The intensity of bending stress in a beam varies directly with the distance of the point from the neutral axis. This is shown by the bending equation sigma = M/I * y where stress is proportional to the distance from the neutral axis. The stress varies linearly from zero at the neutral axis to a maximum at the outer surface of the beam.