apply displacement table on ansys

[ibaitxumordor]

Hi everybody,
I am doing a fatigue analysis on Ansys, and I want to apply as boundary condition, cyclic displacement, sometimes 8 mm positive, and other times -8 mm. Somebody knows how can I do that??
Thanks and we will see
ibai

 

[rickfischer51]

Is this Workbench or MAPDL? Do it as two separate load steps.

 

[ibaitxumordor]

Hi Rick, It´s ANSYS 11 Classic, not Workbench, so MAPDL. I want to know the commands that I have to use.
Thanks for your attention

 

[ibaitxumordor]

And I don´t say but I´ve got other complication. I´m using the usermat

 

[rickfischer51]

Something liek this would work:

time,1
d,nnum,ux,8
solve
time,2
d,nnum,ux,-8
solve

What are you mdeling with usermat?

 

[ibaitxumordor]

I´m modeling fatigue degradation, I´m trying your method and I´m going to answer nextly shortly.
Anyway thanks for your help