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AME101-F07-PS4

# AME101-F07-PS4 - AME 101 Fall 2007 Problem Set#4 Assigned...

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AME 101 Fall 2007 Problem Set #4 Assigned: Friday, 10/26/2007 Due: Friday, 11/2/2007, 4:30 pm, in my mailbox (OHE 430J) As always, no late homework is accepted for credit (you may turn in late homework, however, if you just want it graded.) Problem #1 (15 points) The pressure inside the cylinders of a diesel engine reaches a maximum pressure of 100 atm during combustion. The diameter of the cylinder is about 4 inches. If a safety factor of 10 is required and the cylinder wall material is 4340-HR steel (yield stress 910 MPa = 910 x 10 6 Pa = 910 x 10 6 N/m 2 ), what wall thickness is required? Problem #2 (25 points total) A steel pipe is filled with steam at a pressure of 2000 lbf/in 2 . The pipe has a diameter of 1 inch and a wall thickness of 1/16 inch. (a) What is the longitudinal stress and hoop stress in the pipe? (b) What is the moment of inertia of the pipe cross-section? (c) If the pipe is 10 feet long and held by pinned ends, and a 500 lbf weight is hung from middle of the pipe (i.e., treat the pipe as a beam with a point load), what is the stress caused by just this

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AME101-F07-PS4 - AME 101 Fall 2007 Problem Set#4 Assigned...

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