FEAP User Forum
FEAP => Input File Issues => Topic started by: jun on April 12, 2016, 02:00:22 AM
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Dear all,
I am trying to include resiudal stresses to a half-circle in 3D. To accomplish that I start from an opening angle and use the spin command to "close" the ring (I use half the ring and symmetry bcs).
After I have closed the ring I try to release the BCs and let the solution homogenize. Unfortunately this does not happen - the stresses are still uneven ( I am looking at circumferential stresses).
Can anybody suggest what I am doing wrong ( i attached the input file)? Thanks a lot in advance and best wishes!
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Did you zero the boundary conditions you originally set?
You can use the MESH command
RESEt BOUN
to zero all the b.c.; RESEt also exists for DISP and FORC.
Then define the new values.
Probably both sets of boundary conditions are being used.
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For LOAD groups you may have to set the associated PROP load to zero to delete the set values.
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Dear Professor Taylor,
thank you very much for your quick reply.
I have tried that, also setting all nodal boundaries by hand to zero. I attached a slightly modified input file. I also checked whether the boundaries are reset to zero and then set to the new values again and it did work.
However, the stresses did not homogenize. I am using feap 8.4 btw.
Is there anything else I could be doing wrong?
Thank you in advance!
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Currently, feap does not reset the load group, so probably that is the difficulty.
Is it possible to run the problem without the LOAD group?
Otherwise you may need wrote a user function that kills the load group data.