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Meshing a tube

Experimenter
Experimenter

Hey everyone,

How would I go about properly meshing this tube? What element would you recommend using? 

 

Thanks in advance

4 REPLIES

Re: Meshing a tube

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Hello!,

I suggest to start with a simply model (a GLOBAL model) using 1-D CBEAM elements and next compare results using a more detailed model (LOCAL model) meshing with 2-D Shell CQUAD4 elements using the MIDSURFACE of the tube.

You don´t mention the target of the analysis, what results you are looking for, etc... Is not the same to perform a linear static analysis or a Buckling analysis, or a Dynamic Response analysis or a nonlinear analysis, the element type & mesh density is different. Perhaps you only need to know the natural frequency of the structure?.

In any case, always begin with a simplified FEA model, OK?.

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: Meshing a tube

Experimenter
Experimenter

Hi thanks for the response! I am trying to get more familiar with meshing various geometries, my main objective was to conduct stress analysis. 

Re: Meshing a tube

Experimenter
Experimenter

Earlier today I came accross your Youtube channel, it is amazing. Thanks for all the awesome tutorial videos

Re: Meshing a tube

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Hello!,

If stress results is what you need, then create a midsurface of the tube and mesh with 2-D Shell CQUAD4 elements. The minimum mesh density requirements for a cylindrical surface to mesh with 4-nodes plate elements is to use 6 elements each 90º, ie, one plate element each 15º.

CONNECTION1_brida.png

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/