Strain-cycles (EN) Fatigue analysis

Altair Forum User

I was trying to do Fatigue analysis (EN) in Optistruct according to the tutorials for Strain- cycles (EN) analysis. I gave input load time history table for the load from the tutorial folder (in C drive).  I got an output as damage (s). But I want output as no. of cycles. How will I get that? 

In experimental constant strain controlled fatigue test, we perform the test for different strain amplitudes and we will get corresponding cycles of failure. I want to replicate the same in Optistruct. Is it possible in it?  Please help me out. 

I am doing the analysis with standard tensile test specimen.

Thanks in advance.

Altair Forum User

Hi @Vaibhav25

 

Can you share the .out file, please?

 

 

Altair Forum User

yes here is the. out file.

 

Unable to find an attachment - read this blog

Altair Forum User

@Vaibhav25

 

I think life will be written in H3d file. Can you please check the results?

 

Altair Forum User

yeah, life is there in the H3d file but it is in terms of seconds and i want life in terms of the number of cycles.