The bending stress in a curved beam is
A. Zero at the centroidal axis
B. Zero at the point other than centroidal axis
C. Maximum at the neutral axis
D. None of these
Answer: Option B
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option B is correct because loading impacts on beam. it will be curved from its centroid axis(centre) so, bending stress is maximum at that point.
No stress is zero a little below of the neutral axis. Stress is maximum at compression zone.
It must be zero at the neutral axis....
So correct option is D
Zero at the point other than centroidal axis
For curved beam bending stress is zero at the neutral axis, but bending stress is not zero in the centroidal axis.