A question about fatigue analysis using ANSYS Workbench

[Chaabain]

I am performing a fatigue analysis for the mechanism shown in Figure 01. This mechanism is made of titanium alloy (Ti-6AL-4V). It’s supposed to be locked at this position. After being locked, each of the two upper plates should support till 5E6 cycles of the time-varying load shown in Figure 02. I would like to know if I have well performed this analysis given that I have chosen a static structural analysis with fixed support for the lower plate and two force cycles applied to the two upper plates. I have added a fatigue tool to the solution with the details shown in Figure 03.
I have read the manual "Fatigue Analysis in the ANSYS Workbench Environment" but I'm still not sure that I have well chosen the details of fatigue tool.

http://files.engineering.com/getfil...d32-44f7-8a70-0aa9badc20b5&file=Figure_01.bmp

http://files.engineering.com/getfil...830-4dda-a834-235559994ece&file=Figure_02.bmp

http://files.engineering.com/getfil...e8d-4351-afe4-bb6d95a3f84a&file=Figure_03.bmp

Thank you in advance for any help.
Chaabain

 

[Chaabain]

Any piece of information could be helpful. Please don't hesitate and thank you in advance.