5.5. For the simply supported beam shown in Fig. P5.5, determine the bending stress at points D and E. The cross section is a 0.15 0.15 0.02 angle (Fig. 5.4). 24 kN 24N 24 kN 2 m 2 m 4 m m DE N 4m Figure P5.5. = ni AGM = m 2. Derive AGM = RT [In(1 02) + (1 - 1) $2 + x2] from RT [n In 01 +n2 In 02 +n1 02x), using 01 and (n1+an2) 02 (ni+xn2) Please see slide 28 in Wk.4_PolymerSystems_I. an2 =