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

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-N diagram for this material, label the key points on the graph and compute the material strength (Sf) corresponding to 800,000 loading cycles?

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

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samet mamat answered 1 year ago

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