X Adobe Scan Apr 10, 2021.pdf - Adobe Acrobat Reader DC (32-bit) File Edit View Sign Window Help ? A Sign In Home Tools Adobe Scan Apr 10... x /1 + 65% 6-123. Segment A of the composite beam is made Search 'Measure' from 2014-T6 aluminum alloy and segment B is A-36 steel. The allowable bending stress for the aluminum and steel are (.1) = 15 ksi and (Callw) - 22 ksi. Determine the maximum allowable intensity w of the uniform -15 ft Export PDF A distributed load. 3 in. 3 in. W Maximum Moment: For the simply supported beam subjected to the uniform bye distributed load, the maximum moment in the beam is Many = WL' W(1S') 8 4 = 28.125w. Section Properties: The cross section will be transformed into that of steel as 3 in. shown in Fig. a. Here, n = - 10.6 29 - 0.3655. Then by = nb. - 0.3655(3) = 1.0965 in. The location of the centroid of the A 3in. transformed section is y = EyA 1.5(3)(3) + 4.5(3)(1.0965) EA 3(3) + 3(1.0965) 4 = 2.3030 in. 3 in. The moment of inertia of the transformed section about the neutral axis is (a ) 1 - E7 + Ad = 7 (3)(33) + 3(3)(2.3030 - 1.5)" + 72(1.0965)(3') + 1.0965(3)) + 1.0965(3)(4.5 - 2.3030)' - 30.8991 in*