A simply supported rectangular beam with width
b and depth h carries a vertical shear force V at a cross-section.

Which of the following statements about the
transverse shear stress distribution at that cross-section is correct?

Question

A simply supported rectangular beam with width
b and depth h carries a vertical shear force V at a cross-section.

Which of the following statements about the
transverse shear stress distribution at that cross-section is correct?

Accepted Answer

The
shear stress is zero at the top and bottom surfaces and is maximum at the
neutral axis, where it equals 1.5 times the average shear stress V/A.

Answer

The shear stress is maximum at the top and
bottom surfaces of the beam, where the bending stress is also largest.

Answer

The
shear stress is maximum at the neutral axis, but its value is equal to V/A
regardless of the cross-section dimensions.

Answer

The
shear stress is uniform across the depth of the section, equal to V/A.

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