For Problems 18-18 through 18-21, use the Euler—Johnson formulas, Eqs. (18-9) and (18-10...

For Problems 18-18 through 18-21, use the Euler—Johnson formulas, Eqs. (18-9) and (18-10), and a modulus of elasticity of 30,000,000 psi.

Compute the required diameter of an air cylinder piston rod of AISI 1040 hot-rolled steel. The rod has a length of 54 in. and is subjected to an axial compressive load of 1900 lb. Assume pinned ends. Use a factor of safety of 3.5.