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Second order elements with midnodes in the middle of element (not in surface)

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Second order elements with midnodes in the middle of element (not in surface)

Posted by Sergio Pluchinsky at December 18. 2018

Hi, is there a way to mesh parts using Netgen algorithm, choosing second order elements, but with the midnode in the middle of element and not in surface? The second order elements with nodes in surfaces can be curved and very often lead to non jacobian errors in CalculiX.

By the moment what I do is first generate the first order meshes, and then change to second order but unchecking the option to attach the midnode to the geometry, I'm looking for the way to do it directly.

 

Regards

Re: Second order elements with midnodes in the middle of element (not in surface)

Posted by Saint Michael at December 18. 2018

Hi Sergio,

NETGEN has no such an option, the way you use is a sole choice in this case.

St.Michael

Re: Second order elements with midnodes in the middle of element (not in surface)

Posted by Sergio Pluchinsky at December 18. 2018

Thanks for the quick answer!

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