Beam188/Beam189

[amrnijad]

Hi everyone!
Can anyone tell me the difference between Beam188/Beam189 in their use?

 

[CornishPasty]

Yes, the difference is in their identification numbers. The help files go into a little more detail if you require it.

Hope this helps...

 

[amrnijad]

Thanks for the reply
But in the help file there is no major difference only that 188 has 2nodes element but you enter a third node "K" to give the orientation. The 189 has the third node "L" you enter the length of the element.
I want to know what`s the major difference!!!
Also in Ansys 13.0 they removed all beams elements and have kept only the 188 and 189 beam!!!
I wanted to ask how can i to do a 2d problem and these beams are 3d!!! I know there is no big difference and I can solve with these beams but how i can make it 3 degree of freedom not 6!!!

 

[kan123]

189 has a midside node while 188 only has nodes at the ends (not counting the orientation node). You can make the problem 2D by applying appropriate boundary conditions (for example, UZ, ROTX, ROTY). I don't know about WorkBench, but you can still use Legacy Elements in APDL (they just aren't documented in the Help).