Topic: Strength of Materials
Which of the following statements is correct, in case of a curved beam?
- A. Neutral axis is nearer to centre of curvature compared to centroidal axis.
- B. Neutral axis is farther to centre of curvature compared to centroidal axis.
- C. Neutral axis matches with centroidal axis.
- D. Neutral axis shifts above or below centroidal axis depending on loading conditions.
Answer: A. Neutral axis is nearer to centre of curvature compared to centroidal axis.
Explanation: Due to the hyperbolic stress distribution in a curved beam under pure bending, the neutral axis always shifts and is located nearer to the centre of curvature compared to the beam's geometric centroidal axis.