14 The cross section of a composite beam is shown If a bendi

14. The cross section of a composite beam is shown. If a bending moment is applied about the horizontal axis of the beam and Ei E, then the transformed shape will look like a A) tee B) rectangle C) letter I D) upside-down tee E) plus sign

Solution

Answer: (A) Tee

As E1>E2, then n = E1/E2, so n>1

In transformed section, the upper part will have its width multiplied by n which will make it look like a Tee section.