2 Replies Latest reply on Feb 20, 2015 7:09 PM by Jared Conway

How to bond a weldment (beam) to a body

John Mcc Feb 19, 2015 9:31 PM

I am trying to run a dynamic simulation on a roll cage for my senior project. I am impacting the cage with an object at a specified speed. However I am running into the issue of initial contact between the surfaces. It seems there is no contact. When I use the contact tool I get the error 'invalid entity on beam body was selected." I think it has to do with the fact that the cage is built out of weldments. I read the other post on this and have no idea what their trying to say. Any suggestions?

Jake

dym 1.SLDASM.zip 1.3 MB

Re: How to bond a weldment (beam) to a body

Bill McEachern Feb 20, 2015 9:10 AM (in response to John Mcc)

no penetration contact is not support with beams in any analysis. Putin a solid and bond it to the beam an d set the contact between the object and the inserted solid is work around that may work. or mesh the beam in the area of contact as a solid.
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Re: How to bond a weldment (beam) to a body

Jared Conway Feb 20, 2015 7:09 PM (in response to John Mcc)

someone else was doing this recently
this will be a very challenging analysis
would recommend stepping into this
a static analysis
static analysis with a load that is multiplied to get an equivalent force to dynamic
a linear dynamic impact analysis
nonlinear dynamic
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