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NURBS surface doesn't work

Posted: Thu Oct 21, 2021 10:39 am
by Bil
Hi,

I tried to create NURBS surface with 4 shape (2 big rectangular and 2 small trapezoidal shape). when i create automatic NURBS surface, only 2 surfaces are created. When i try to create surfaces by contour it's ok and i can assign materials and conditions. But later, when i try to calculate, the sofware say that there is a no assigned material and stop the process. While i can see that all the materials are assigned.

What is the problem? Is there a problem with the connexion of the lines during the geometry creation?

Thanks

Re: NURBS surface doesn't work

Posted: Thu Oct 21, 2021 11:19 am
by Bil
May i close each shape to have a solide shape each time?

Thanks

Re: NURBS surface doesn't work

Posted: Thu Oct 21, 2021 1:32 pm
by escolano
Maybe do you have some surface created twice, or some isolate line that generate extra line-elements (or lines are force to generate line-elements) and then these unexpected elements doesn't have any assigned material and the error is raised.

Re: NURBS surface doesn't work

Posted: Fri Oct 22, 2021 8:57 am
by Bil
escolano wrote:Maybe do you have some surface created twice, or some isolate line that generate extra line-elements (or lines are force to generate line-elements) and then these unexpected elements doesn't have any assigned material and the error is raised.
Hi, thanks for this answer, i think that i have some isolate line. So i remake the geometry cutting the different shape smaller and it's seems that it work but the problem now is after calculation it is showed that "EDF is found too early", i don't know what that mean!

So is it possible to have a short course to improve my knowledge about this software? thanks

Re: NURBS surface doesn't work

Posted: Fri Oct 22, 2021 11:01 am
by escolano
EOF == "End of file"
This message mean that the calculation of the problemype is not working, or has not finished,
and the results file written to be postprocessed by GiD is truncated.

go to menu: Calculate->View process info, maybe the solver has provided some message.
Check also if the solver is writing some extra file in the model folder with error or warning messages.

To learning GiD you can start doing the tutorials of the 'GiD user manual' (included in the GiD help->Tutorials and courses, and also can download pdf versions from our web)

Re: NURBS surface doesn't work

Posted: Sat Oct 23, 2021 1:25 pm
by Bil
escolano wrote:EOF == "End of file"
This message mean that the calculation of the problemype is not working, or has not finished,
and the results file written to be postprocessed by GiD is truncated.

go to menu: Calculate->View process info, maybe the solver has provided some message.
Check also if the solver is writing some extra file in the model folder with error or warning messages.

To learning GiD you can start doing the tutorials of the 'GiD user manual' (included in the GiD help->Tutorials and courses, and also can download pdf versions from our web)

Ok, thanks a lot