TPLOT + PARTITION SOLUTION not work (SOLVED)

[Yaakov]

Dear FEAP Team & Users,

it is my first time that I use partition solution for my problem, I am a little suprised that  some "TLOT" commands (sums, reac) don't work any more...

e.g. The value of the reaction force is 0. 

Would you let me know where are the bugs of my solution commands in the Input File?

example:

Code: [Select]


part
1 1 0
0 0 1


Batch
prop,,1,2
end
1 0 0 1.e6 0 1 0 0
1 0 0 1.e6 1 0 0 0

BATCh
TPLOt
END
sums,2,2,5,0.0001
show

batch
optimize

dt,,1.d-7
loop,,5000000
time

part,,1
loop,,10
tang,,1
next

part,,2
loop,,10
tang,,1
next



plot stre 2,,1


next

end


inter
stop


Warm regards,
Yaakov

[FEAP_Admin]

Please provide a complete input file that displays the problem.  Make it as simple as possible and only use built-in FEAP features/materials/elements.

[Yaakov]

Dear FEAP Administrator,

Thanks very much for your answer!

I attach the complete input file which is based on FEAP Benchmark. TPLOT shows that the value of reaction force is zero, but I  have checked that the value of third residual is not zero...

Warm regards,
Yaakov

[Prof. R.L. Taylor]

This is something that cannot be fully corrected easily, however, there may be a simple way to get most things to work.  You add another partition that sets all the dofs active that you need for the reaction sum, say partition 3 set to 1,1,1; then in your solutions you add
              PART,,3
              FORM
then the  TIME

That should force all the dof's to be active when TIME does the saves for the TPLOt command.  To get the final result you may need another set of this data at the end.  I am not sure this will be completely correct but try it and report your findings.

[Yaakov]

Dear Prof. Taylor,

I am grateful that you have solved this problem. I have checked this new solutions concept in different numerical benchmark tests, the new results (U-F curve) are completely correct!

Kind regards,
Yaakov