Question

The maximum bending stress in a curved beam having symmetrical section always occurs at the

• A. Neutral axis
• B. Centroidal axis
• C. Inside fibre
• D. Outside fibre

Answer 1

Answer:

C. Inside fibre

In a curved beam with a symmetrical section, the maximum bending stress does not occur at the neutral axis or the centroidal axis. Instead, it is found at one of the fibres. The stress distribution is such that the stress is highest at the inside fibre, which is subjected to the maximum compressive stress, making it the critical point for stress analysis in such beams.