Derive the expression for the shape-efficiency factor \(\phi_{B}^{e}\) for stiffness-limited design for a channel section of thickness \(t\), overall flange width \(5 t\) and overall depth \(10 t\), bent about its major axis (the dash-dot line in Fig. E10.3). Do not assume that the thin-wall approximation is valid.

Data From Fig, E10.3.

Transcribed Image Text:

10t 5t FIGURE E10.3