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Surface traction on NOT constraint boundaries.
Posted May 4, 2011, 8:05 p.m. EDT Results & Visualization, Structural Mechanics Version 4.1 1 Reply
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Good evening,
Could you, please, help me to clarify the purpose of "Surface traction" option from post processing menu in Structural Engineering module. I know, that it will give me a reaction force if I use it on constraint boundary.
What kind of loads I will obtain on NOT constraint boundaries if use "Surface traction" option ?
For instance, if I use it on internal surface, whether it gives me loads acting on this boundary? I understand that to obtain a good precision I have to use weak constraint on this boundary, however, by using Surface traction can I obtain at least somewhere near value?
Thank you in advance,
Best,
Artrem
Could you, please, help me to clarify the purpose of "Surface traction" option from post processing menu in Structural Engineering module. I know, that it will give me a reaction force if I use it on constraint boundary.
What kind of loads I will obtain on NOT constraint boundaries if use "Surface traction" option ?
For instance, if I use it on internal surface, whether it gives me loads acting on this boundary? I understand that to obtain a good precision I have to use weak constraint on this boundary, however, by using Surface traction can I obtain at least somewhere near value?
Thank you in advance,
Best,
Artrem
1 Reply Last Post May 5, 2011, 9:57 a.m. EDT
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Posted:
1 decade ago
Hi
as it's expalined in the doc you have theintegration of the reacf() values RFx,RFy,... and moments RMx,RMy... (with the physics prefix "solid." or whatever you are doing, this applies to restricted boundaries. Then in structral you have the integration of the Tax,Tay... over a (any) boundary (less precise but often usefull) and finally you might turn on the weak form and iintegrate the "Lm" but then you need also to use the Diret solvers, that uses more RAM ut are oftenfaster than the interative ones.
Its all up to you, but be aware, one should always check and compare the results of FEM to some simple analytical hand calcualtions
--
Good luck
Ivar
as it's expalined in the doc you have theintegration of the reacf() values RFx,RFy,... and moments RMx,RMy... (with the physics prefix "solid." or whatever you are doing, this applies to restricted boundaries. Then in structral you have the integration of the Tax,Tay... over a (any) boundary (less precise but often usefull) and finally you might turn on the weak form and iintegrate the "Lm" but then you need also to use the Diret solvers, that uses more RAM ut are oftenfaster than the interative ones.
Its all up to you, but be aware, one should always check and compare the results of FEM to some simple analytical hand calcualtions
--
Good luck
Ivar