고체역학 (Gere) — Axially Loaded Members: Problem 2.2-17

2.2-17 A hollow, circular, cast-iron pipe (\(E_c = 83\) GPa) supports a brass rod (\(E_b = 96\) GPa) and weight \(W = 9\) kN, as shown. The outside diameter of the pipe is \(d_c = 150\) mm. (a) If the allowable compressive stress in the pipe is 35 MPa and the allowable shortening of the pipe is 0.5 mm, what is the minimum required wall thickness \(t_{c,min}\)? (Include the weights of the rod and steel cap in your calculations.) (b) What is the elongation of the brass rod \(\delta_r\) due to both load \(W\) and its own weight? (c) What is the minimum required clearance \(h\)?