2D finite element using a plane strain formulation

[Luciano Jacinto]

Dear NextFEM Support Team:
As far as I can understand, the 2D finite element implemented by NextFEM Designer (triangle or quadrangle) is good to analyze a membrane problem using a plane stress formulation. What about a membrane problem using a plane strain formulation instead? Is that possible in NextFEM? This kind of formulation is very common in geotechnics problems.
Thanks in advance,
Luciano Jacinto

[NextFEM Admin]

Dear Luciano,
we support plane strain as well. To convert quad or tria elements to plane strain, select the elements, the use the command Edit / Change elem. type / select the option Is -> PlaneStrain and finally press Apply.

[Luciano Jacinto]

Thank you very much for your support. Now I know how to solve a plane strain problem in NextFEM Designer.

I made some search in the NextFEMpy module (in GitHub) to see if there is a Python method equivalent to the “Change elem. type” command in the GUI, but I didn’t find any. Perhaps this command is not yet implemented in the API. Am I correct?

Thank you for the free version of NextFEM. It’s a nice tool.
Luciano

[NextFEM Admin]

You’re right and we expected your enquiry – that’s why we’re adding the command to APIs in the next patch.

[Luciano Jacinto]

Thank you very much!

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