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  3. a) a machined steel has the following properties:

a) A machined steel has the following properties: Sut= 400 MPa, Sy= 350 MPa, and S’e=...

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Mechanical Engineering

a) A machined steel has the following properties: Sut= 400 MPa,Sy= 350 MPa, and S’e= 200 MPa. The value f = 0.9 Sketch the S-Ndiagram for this material, label the key points on the graph andcompute the material strength (Sf) corresponding to 800,000 loadingcycles?

b) What value of strength of the materials described aboveshould be used if 3,000,000 loading cycles are expected during thelife of this part?

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