How to analysis Fatigue using Ansys APDL?

[vinhphoi]

Hello Everyboody.
I use ANSYS APDL with code for my shaft with two coating layers(interlayer and coating layer). I already analysis stress of shaft with Ansys. the result is ok and i exported to .RST file. But , when i input my shaft to Ncode, I can't find the interlayer and coating layers.I think this shaft have 3 part(subtrate, interlayer, coating layer)

!substrate materials
Young's modulus (Mpa): 2.1e5
Poisson's ratios:0.3
Density(ton/mm3):8.03e-9

! interlayer material
Young's modulus (Mpa): 3,2e5
Poisson's ratios:0.31
Density(ton/mm3):8.908e-9

!coating material
Young's modulus (Mpa): 2.79e5
!Poisson's ratios:0.21
Density(ton/mm3):7.19e-9

Please, help me to analysis fatigue of this Shaft

 

[Mary1308]

There is no hope here

 

[Bill Toulas]

Hello,

Maybe this will help: https://www.engineeringclicks.com/forum/threads/how-to-analysis-fatigue-using-ansys-apdl.5486/

There's also this video: