Solved: A hole is punched at A in a plastic sheet by
Chapter 3, Problem 3.48(choose chapter or problem)
A hole is punched at A in a plastic sheet by applying a 600-N forceP to end D of lever CD, which is rigidly attached to the solidcylindrical shaft BC. Design specifications require that the displacementof D should not exceed 15 mm from the time the punchfirst touches the plastic sheet to the time it actually penetrates it.Determine the required diameter of shaft BC if the shaft is madeof a steel with G 5 77 GPa and tall 5 80 MPa.
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