A horizontal load Pis applied to an assembly consisting of two inclined bars, as shown in the figure. The cross-sectional area of bar (1) is 1.30 in.?, and the cross-sectional area of bar (2) is 1.75 in.?. The normal stress in either bar may not exceed 24 ksi. Determine the maximum load P that may be applied to this assembly. Assume dimensions of a = 14.5 ft, b = 9.0 ft, and c = 14.5 ft. (1) a B b
A horizontal load P is applied to an assembly consisting of two inclined bars, as shown in the figure. The cross-sectional area of bar (1) is 1.30 in.2, and the cross-sectional area of bar (2) is 1.75 in.2. The normal stress in either bar may not exceed 24 ksi. Determine the maximum load P that may be applied to this assembly. Assume dimensions of a=14.5 ft, b=9.0 ft, and c=14.5 ft.
Make a new assumption for the maximum load case, referred to as “Load Case B”, in which the force in member (2) will control the capacity of the two-bar assembly. For this assumption, which may or may not be correct, the force in member (2) is F2,B=F2, allow. Enter the value of the force in member 1 for Load Case B.
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