Direct cyclic analysis

[ihtishamarif343]

Hello Friends
i am trying to validate a research paper. Topic is LCF crack propagation by using XFEM. I successfuly abled to propagate the crack by using direct cyclic solver but i don't know how to extract the data. I want to plot the following two graphs
1- crack length vs number of cycles
2- number of cycles vs stress intensity factor range.

I think we have to write a python code by using PHILSM and PSILSM to get the crack length and number of cycles. can you please confirm it? and if yes, does this code will be universal to all xfem crack porpagation model or it is strictly align with every model? i mean, if the code is universal then i might don't need to write it and try to find from the website like GitHub.

 

[FEA way]

You could use the CYCLEINIXFEM output variable which is the number of cycles to initialize crack at an element when utilizing XFEM. Crack length indeed requires manual measurements or scripting because there's no dedicated output for that.