Learning Forum

[hmertd]

Hello everyone I can perform pre-stressed modal or transient analysis using ANSYS Mechanical. However, I cannot use bolt-pretension results in another static analysis. I have a case that, same pretension with plenty of different loads, if I can solve bolt-pretension once, than I will save so much time.

[dinhan0394]

You can try this way:
Export stress results to external file (*.txt)
Import results via External Data and use as pre-stress.

[mert.dedebeyoglu]

I tried your suggestion. However, exported stresses does not match with original analysis and I have convergence issues.

I exported Eqv. Von Misses stress as a text file. Than I imported as initial stress.

[Miguel]

I am also interested in this question. Anybody else there with new ideas?

Thanks

[peteroznewman]

I wrote about a method I used a long time ago in this old thread.

https://forum.ansys.com/forums/topic/multiple-loads-restarted-from-initial-loadstep/

[Miguel]

Thanks Peter but following your link, neither the embedded videos nor the attached archive seem to be available... Is there any other way to access them to properly understand your explanations?

[peteroznewman]

Yes, that is a 4 year old post and the videos and archive have been deleted.

The description should be sufficient to recreate the workflow.

Do you know how to restart a normal solution?  Master that as a first step.

[Miguel]

Fair enough. I´ll try it. Thanks.

Anyway, my interest in this case is in relation with this other post about how to evaluate several cycles of a loading setup (in my case 20) but not so many as to make sense to apply fatigue tools:

https://forum.ansys.com/forums/topic/low-cycle-fatigue/

I thought this “Static to Static” approach could be one way to go about it… Do you have any suggestion/s on this particular matter?