고체역학 (Beer) — Pure Bending: Problem 4.36

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. P4.34: Dimensions show a central core of height 40 mm and width 20 mm (derived from total width 40 mm - two 10 mm side walls). The core is surrounded by Aluminum: top and bottom plates of 10 mm height, and side walls of 10 mm width. Total width = 40 mm, Total height = 10 + 40 + 10 = 60 mm. 4.35 and 4.36 For the composite bar indicated, determine the largest permissible bending moment when the bar is bent about a vertical axis. 4.36 Bar of Prob. 4.34.