Question

Consider the following statements:
When a beam of square cross-section is used with a diagonal in a vertical position,
1. The shear stress distribution across the section of the beam will be maximum at the neutral axis
2. The shear stress distribution across the section of the beam will be zero both at top and bottom
3. The maximum shear stress does not occur at neutral axis

Which of these statements are correct ?

• A. 1, 2 and 3
• B. 1 and 3
• C. 2 and 3
• D. 1 and 2

Answer 1

The correct option is C 2 and 3


Maximum shear stress occurs at 3/8b from the top or bottom where b is the length of diagonal.