Strength Of Materials

The trailer hitch shown in Figure 1 and Figure 1-1 (p. 11) has loads appliedas defined in Problem 1. The 100-kgf (980 N) tongue weight actsdownward and the pull force of 4905 N acts horizontally. Using thedimensions of the ball bracket shown in Figure 1-5 (p. 14), determine:

(c) The tearout stress in the ball bracket.

(d) The nonnal and shear stresses in the attachment bolts if they are 19-mm dia.

(a) The principal stresses in the shank of the ball where it joins the ball bracket.

(b) The bearing stress in the ball bracket hole.

(e) The principal stresses in the ball bracket as a cantilever.



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