7.19 Figure P7.19 shows a cantilevered steel rod with a 90° bend lying in a horizontal plane. Weight W is dropped onto the end of the rod from height h.

If the steel has a yield strength of 50 ksi,what combinations of W and h are required to produce yielding of the rod? Neglect the weight of the rod and neglect transverse shear stresses. Assume the maximum-distortion-energy theory of failure applies.[Ans.: Wh 2 92.4 in.-Ib. based on an additional simplifying assumption.]