![]() Also, ask a lot of "why" questions - why did you choose to perform the analysis this way - why did you choose this mesh density - etc. Ask them what the discretization error is in the stress analysis, and whether or not they performed a sensitivity analysis on the error to determine how much the error would affect the fatigue life. ![]() Ask them how they incorporated the temperature-dependent material properties. Ask them what the discretization error in the thermal calculations is (assuming they too were done using FEA). Ask them how they determined the temperature field at each step in the thermal transient. Ask questions of the vendor, including the ones you posted here. My only suggestion is perform a rigorous evaluation, just like you would for any FE-based report. ![]() Isthill - I don't think that this is a "support" issue - rather a question from an engineer who is reviewing a vendor's calculations.
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