Consider a thin-walled cylindrical pipe with a 1.00" inner diameter that is used to transport pressurized steam. the gauge pressure (p) of steam within the pipe is 10.3 mpa. a. compute the minimum required wall thickness (mm) for each of the following metal alloys. assume a factor of safety of 2. you can use excel to calculate thickness for all metals, but show your work for at least one. b. which of the alloys below will be the least expensive in satisfying the above engineering requirements

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.