The loading shown in Figure P7-20(a) is to be carried by an extruded aluminum hat-section...

The loading shown in Figure P7-20(a) is to be carried by an extruded aluminum hat-section beam having the cross section shown in Figure P7-20(b). Compute the maximum stress due to bending in the beam. If it is made of extruded 6061-T4 aluminum and the loads are dead loads, would the beam be safe?

FIGURE