Beam Idealization

[plandoll]

In the Creo Simulate Help Center it says the use of beam idealizations is only valid for a ratio of beam height to its length of up to 1/10.

I would like to simulate a part which has a ratio of 4/10. Simulating the part as a solid is not an option.

How does that "invalid" ratio influence the simulation results?

I would also like to know how many nodes/elements Creo Simulate creates on each beam idealization and if this is variable.

Any help is greatly appreciated.

[skunks · Accepted solution]

example (volume vs. beam)

regards

paul

[plandoll]

Thank you very much for your fast answer, Paul.

I hope I interpret your model correctly since I see only a difference in the max. deformation value of about +2,3 %.

I attached a sketch of my use case. Is the deformation difference the only deviation resulting from the use of the beam idealization? If yes, that would cause point A and B to displace a little more than they should but due to their identical behaviour the long beam would undergo the same load, wouldn't it?

Best regards

Patrick

[skunks]

for example as volume (better).

regards

paul

[plandoll]

Again, thanks very very much for your very helpful model!

I hope that this is the last time I have to ask a question concering this topic.

I see that in this case the displacement difference of a solid and a beam model is huge.

Due to the fact that I have lots of these c-profiles connected to each other, I want to use the beams at least for the longest beam. (attached file: example_02)

I attached a comparison between a solid, beam and combination of both (example_01). In this comparison there is huge displacement difference of the mixed beam-solid model and the solid model. But this time the ratio of beam height to its length is valid according to Timoshenko beam theory.

The only possible blind spot I can imagine is the connection between the beam and the solid or is there another mistake I don't recognize?

I would really appreciate your help.

Best regards

Patrick

[skunks]

hello Patrick,

test as beam-volumen

regards

paul

[skunks]