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Camille

Difference beam type 18 and beam type 3

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Hello,

I would like to know what kind of beam I should use for my simulation and I struggle to find the differences between the P18_INT_BEAM and the P3_beam. I saw that in bending, the bigger the deformation get, the bigger differences are between the two kinds of beam. Could somebody give me more informations about that ? 

 

Regards,

 

Camille 

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Hi,

Thank you for your anwser, yes I already checked it. It give an idea but I wanted to find more details about it, in the theory manual for example but I didn't find more explainations or case of usage. I would like to know which type of beam I should use to simulate lattices structures. Is there any other document about it ? 

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Hi,

Please review the User Guide, Explicit Structural Finite Element Analysis, Finite Elements, Beam Elements (/PROP/BEAM, /PROP/INT_BEAM)

 

Also the comments in Reference guide for /PROP/INT_BEAM.

The /PROP/INT_BEAM works fine for bending. The use of several integration points in the section allows to get an elasto-plastic model in which von Mises criteria is written on each integration point and the section can be partially plastified unlike the classical beam element (/PROP/BEAM).

 

For lattice structures, you need to decide if you need the extra accuracy of the /PROP/INT_BEAM beam or if /PROP/BEAM will be accurate enough. 

 

Thanks,

Andy

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