Solve Prob. 8.45, assuming that the structure has been redesigned to use
-in-diameter pins at A and C as well as at B and that no other changes
have been made.
PROBLEM 8.45 Link AC is made of a steel with a 65-ksi ultimate
normal stress and has a
-in. uniform rectangular cross section. It is
connected to a support at A and to member BCD at C by
pins, while member BCD is connected to its support at B by a
diameter pin. All of the pins are made of a steel with a 25-ksi ultimate
shearing stress and are in single shear. Knowing that a factor of safety of
3.25 is desired, determine the largest load P that can be applied at D.
Note that link AC is not reinforced around the pin holes.