Exercise 8.4. The figure shows a test specimen loaded in compression by the force P = 1 kN. The cross section is rect- angular with width b = 100 mm and thickness t = 50 mm. The figure shows a section inclined by 0 = 30° relative to the cross section. At this section the stress distribution is assumed to be homogeneous. a) Determine the axial stress σ on the inclined section. P| b) Determine the shear stress 7 on the inclined section. -t- Exercise 8.5 The 0 b-