Dunk Mckay
10-27-2012, 08:29 AM
Hi guys,s orry to be annoying and boring. But I'm having trouble with ansys.
I'm trying to model a space frame design using ansys classic 14. The issue is that when I specify different wall thickness for different members it seems to make no difference.
I've simplified everything down and just modeled two beams side by side, with drastically different cross sections under the same load and it's spat out exactly the same deflections, etc. for both beams. i am defining different element types, then assigning different beam sections, then in meshtool selecintg the beams I want to assign the different sections to separately...
Most of the tutorials I've found online are for older version of ANSYS using beam4 or pipe16, but they are now unsupported so it doesn't let me use them. ANSYS documentation I have found recommends to use beam 188, so I am. But as I said I don't seem to be able to actually specify different cross sections for different members and it actually have any effect. So am getting a bit stuck.
Did anyone have this sort of teething problem their first time? Is there a box that I'm supposed to be ticking? Is there a specific way you have to select and deselect members when specifying beam sections?
For now I am at a loss. Any tips or advice would be appreciated.
I'm trying to model a space frame design using ansys classic 14. The issue is that when I specify different wall thickness for different members it seems to make no difference.
I've simplified everything down and just modeled two beams side by side, with drastically different cross sections under the same load and it's spat out exactly the same deflections, etc. for both beams. i am defining different element types, then assigning different beam sections, then in meshtool selecintg the beams I want to assign the different sections to separately...
Most of the tutorials I've found online are for older version of ANSYS using beam4 or pipe16, but they are now unsupported so it doesn't let me use them. ANSYS documentation I have found recommends to use beam 188, so I am. But as I said I don't seem to be able to actually specify different cross sections for different members and it actually have any effect. So am getting a bit stuck.
Did anyone have this sort of teething problem their first time? Is there a box that I'm supposed to be ticking? Is there a specific way you have to select and deselect members when specifying beam sections?
For now I am at a loss. Any tips or advice would be appreciated.