question_answer

A horizontal beam with square cross-section is simply supported with sides of the square horizontal and vertical and carries a distributed loading that produces maximum bending stress \[\sigma \] in the beam. When the beam is placed with one of the diagonals horizontal the maximum bending stress will be:

A) \[\frac{1}{\sqrt{2}}\sigma \]                   

B) \[\sigma \]

C) \[\sqrt{2\sigma }\]                      

D) \[2\sigma \]