An extruded bar of aluminum alloy has the cross section shown in Figure P7.28. A 1.00-m le...

An extruded bar of aluminum alloy has the cross section shown in Figure P7.28. A 1.00-m length of this bar is used as a cantilever beam. A concentrated load P = 1.25 kN is applied at the free end and makes an angle of ϕ = 5π/9 with the x axis. The view in Figure P7.28 is from the free end toward the fixed end of the beam. Determine the maximum tensile and compressive stresses in the beam.

FIGURE P7.28