Question: A material has S u t = 8 0 K P S I , S y = 6 4 K P S I and S

A material has Sut=80KPSI,Sy=64KPSI and Se=40KPSI. The given SH and Sy have already been adjusted for the factor of safety. The given Se has already been adjusted by K factor. Sketch a modified Goodman Diagram and show the values at critical points.
Cyclic loading condition for the part of problem 1 is defined below.
Sa=40KPSI
Sm=43KPSI
Find the Sa and Sm values where yielding on the first cycle takes place for the loading slope. Is this a safe design from a first cycle yielding point of view? (Fully justify your answer).
3. Find the maximum safe combination from the point of view of first cycle yielding point of view for Sa and Sm for the slope of problem 2 and material properties of problem 1.
4. By using the factor of safety formulas for Modified Goodman line and Soderberg line (by reasoning through analogy), define a formula for determining the factor of safety for failure by yielding on the first cycle.
5. A material has the properties of Sut=80KPSI,Sy=64KPSI and Se=40KPSI. The loading conditions are Sa=40KPSI and Sm=43KPSI. Calculate the factor of safety for the ASME-elliptic criteria.
A material has S u t = 8 0 K P S I , S y = 6 4 K

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