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In: Math

The structure of the figure is supported by the pin A of diameter d=3/4" and a cable that passes through the pulley of negligible diameter D.

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The structure of the figure is supported by the pin A of diameter d=3/4" and a cable that passes through the pulley of negligible diameter D.

pulley of negligible diameter D and whose assembly is shown in the figure. For the CE bar it was necessary to construct it by joining two sections of plate with a welded joint in the form of a thorn.

herringbone welded joint, as shown in the detail. For this configuration, determine

a. The minimum area of the CE bar, if its allowable stress is σperm = 12 Ksi.

b. The minimum diameter of the pin E, if its allowable stress is τperm = 10 Ksi.

c. The shear stress produced in pin A.

d. If the thickness of the bar AE is t=5/8", calculate the crushing stress σb on the pin A.

e. The normal stress σ and shear stress τ of the weld bead.


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