P8.045 go multipart part 1 correct answer. correct an aluminum [e = 1 ksi] bar is bonded to a steel [e = 3 ksi] bar to form a composite beam. the aluminum bar has width b = 2.50 in. and height d1 = 0.500 in. the steel bar has width b = 2.50 in. and height d2 = 0.875 in. the composite beam is subjected to a bending moment of m = +150 lb-ft about the z axis. determine: (a) the maximum bending stresses in the aluminum and steel bars. (b) the stress in the two materials at the joint where they are bonded together. transform the steel bar (2) into an equivalent amount of aluminum (1). calculate the transformed width for the steel bar b2,trans.