

March 17, 2023 at 9:00 amFAQParticipant
In ANSYS Release 11.0, it is not possible to plot principal stresses from a PSD analysis. The capability to plot of principal stresses from a PSD analysis was removed in Release 8.1. The stress components from PSD analyses are 1sigma results, so they do not have an associated sign. Using these statistical stress components to calculate derived stress quantities is not appropriate. The equivalent stress (SEQV) is determined using the SegalmanReese approach, which considers the probability distribution of equivalent stress. The SegalmanReese approach does not cover principal stresses.

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