Jump to content
JD3640

FATLOAD with LCID entry

Recommended Posts

Hello,

 

for a Fatigue Analysis I am using the LCID entry to refer to a transient reponse load case to evaluate stress history.

 

My question in which manner the stress history is processed. If the Fatigue LC reads stress from h3d-file the output frequency for transient response analysis is very important.

 

Thanks for your comments.

 

JD

Share this post


Link to post
Share on other sites

Hi Prakash,

 

the loading frequency is not given since the transient response analysis is based an random displacement data via TABLED1 in a TLOAD1 entry.

So frequency of stress history output is defined via TSTEP Load Collector, but in TSTEP there is one Entry for Time Increment and One for Output in h3d.

 

So if fatigue analysis would be calculated parallel the frequency for Time Increment could be used. Is that the case?

Share this post


Link to post
Share on other sites
Guest

Hi,

 

Sorry for the confusion, I meant to say that Fatigue subcase considers the N on Tstep. For example, if N= 20, Fatigue subcase automatically considers outputs of all 20 and there is no way to filter for peaks or lows. 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
You are posting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...