Simulation Mechanical and Multiphysics

Reply
Active Member
n.pesin
Posts: 7
Registered: ‎04-25-2013
Accepted Solution

beam plate moment

152 Views, 4 Replies
03-05-2014 08:50 AM

Hello,

 

Do beam element transfer moment to plate element?

 

Thanks you all

Please use plain text.
Valued Mentor
AstroJohnPE
Posts: 498
Registered: ‎08-30-2012

Re: beam plate moment

03-05-2014 09:55 AM in reply to: n.pesin

Yes, unless the beam element is perpendicular to the plate element(s). When the beam element is perpendicular to the plate, you should distribute the connection over several nodes. It would be similar to the discussion on the help page titled "Examples of Contact" for the case of connecting a beam to a brick element.

John Holtz, PE
Mechanical Engineer
Pittsburgh, PA

16 years experience with Simulation Mechanical
Please use plain text.
Active Member
n.pesin
Posts: 7
Registered: ‎04-25-2013

Re: beam plate moment

03-06-2014 12:22 AM in reply to: n.pesin

Thank you for your very prompt reply.

But my question is also about shell element: Do beam element transfer moment to shell element?

(We often need to run a non linear analysis with large beam-reinforced plate/shell because of the large displacement obtained under a linear analysis)

Furthermore could you tell me which moment are indeed transfer to plate/shell (under linear / non linear analysis) : about axis 1? about axis 2? about axis3?

When I apply moment about axis 2 and 3 under linear or non linear analysis it looks like it works but the results look weird.

In order to know if those results were good, I tried to apply moment directly to the plate: but rigid element doesn't exist under non linear analysis. Could you also tell me how we can apply moment on plate under non linear analysis?

 


Thank you for your help.

 

N. PESIN

Please use plain text.
Valued Mentor
AstroJohnPE
Posts: 498
Registered: ‎08-30-2012

Re: beam plate moment

03-07-2014 09:28 AM in reply to: n.pesin

 

Hi Pesin,

 

The nonlinear shell and linear plate have the same moment transfer ability (also known as degrees of freedom). Moments are transfered about the plate/shell axes 1 and 2 but not about axis 3.

 

You apply a moment to a plate/shell element using the surface moment or nodal moment: it is the same as applying the moment to beam element. A surface moment can be applied about the plate/shell axis 3 because the solver decomposes the moment into a series of forces. A nodal moment about axis 3 should use the method I mentioned before in the "Examples of Contact" section of the Help documentation.

John Holtz, PE
Mechanical Engineer
Pittsburgh, PA

16 years experience with Simulation Mechanical
Please use plain text.
Active Member
n.pesin
Posts: 7
Registered: ‎04-25-2013

Re: beam plate moment

03-10-2014 05:30 AM in reply to: AstroJohnPE

Hi PE,

 

Thank you for your answer.

Please use plain text.