28 Jan 09 7:47
Hi, with Patran sometimes, it might be just that you forgot to click on an apply botton somewhere.
First thing to do is to go in Analysis - Subcases
There you can create subcases and associate them with load cases that you previously define, otherwise you just use the default load case and subcase.
Anyhow, to get the element force, you need to click on a subcase (first box at the top: Available subcases) NOT on a load case (second box: available subcase). This is very important. Once you click on a subcase, the associated load cases should highlight as well. If you want to change the load case, then you can click on another one. Once the subcase has been selected and the appropriate load case selected as well, then click on output request.
By default, you have displacement, stress and SPCForce. If you don't want one of them, then click on it and click on delete. To add results, Element force in your case, CLick on it and it goes directly in the Output requests box.
Here, it is important to click ok and then, click Apply on the next form (Subcases) so you can create a subcase with those output requests. If you are using the default subcase, it will replace what was created in it by default. If you dont click apply on that form, the subcase with output request will not be taken into account!
After clicking apply, on the analysis menu form, click on Subcases select to make sure that you have selected the right subcase to run. Then run the analysis. If a BDF file is created, go in it and make sure that you have in the case control deck something like:
You can also just do Analysis - Entire Model - Analysis deck and that way you will only create the bdf file without running the entire model.
You should now have the element force you requested.