고체역학 (Beer) — Pure Bending: Problem 4.33

4.33 and 4.34 A bar having the cross section shown has been formed by securely bonding brass and aluminum stock. Using the data given in the table, determine the largest permissible bending moment when the composite bar is bent about a horizontal axis. Aluminum Brass Modulus of elasticity 70 GPa 105 GPa Allowable stress 100 MPa 160 MPa Fig. P4.33: A cross-section consisting of a 30 mm square aluminum core sandwiched between two 6 mm thick brass plates. The overall width is 30 mm.