Question

Link AC is made of steel with 65-ksi ultimate normal stress and has a 1/4 x ½ inch. uniform

rectangular cross-section. It is connected to a support at A and to member BCD at C by 3/8 inch

diameter pins, while member BCD is connected to its support at B by a 5/16 inch. diameter pin.

All of the pins are made of steel with a 25-ksi ultimate shearing stress and are in single shear.

Given a factor of safety of 3.25, determine the largest load P that can be applied at D. Note that

link AC is not reinforced around the pin holes. (1 ksi = 1000 psi)