Reply To: Stress concentration calculation at joints (Hotspot Stress)

[danielshaw]

Are you attempting to use the Mechanical Fatigue Tool (FT) for this evaluation?  If so, it does not have the capability to consider a “hot spot” stress.  You can use stress linearization to obtain the hot spot stress, but you would need to manually calculate the fatigue damage.

It might be possible to use the DNSOL/DESOL MAPDL commands to modify stored stress results, but I would not recommend doing it.  Those commands are difficult to accurately use with standalone MAPDL.  I do not know what issues might arise when using them with Mechanical.  It would be easier (and safer) to manually calculate the fatigue damage.