how to get displacement values at the nodes of a given face of a domain ?

[nathan]

Hi everyone,

I would like to know if it is possible to get the displacement values on a given face of a mesh for each time step ? For example I have a 100*100*100 mm^3 cubic domain and I would like to get the displacement values of the nodes at X=100 mm (or the average value of the displacements) for each time step.

Thank you for your help.

Nathan Benkemoun

[FEAP_Admin]

Try this

Code: [Select]

DISPlacement,COORdinate,1,100
This will give you the displacements for all the nodes with first coordinate equal to 100.

[nathan]

Hello,

Do you mean :

batch
tplot
end
DISPlacement,COORdinate,1,100

Thank you very much

Nathan

[Prof. S. Govindjee]

You have two basic options:

Interactive mode

Code: [Select]

Command #>  disp,coor,1,100
or in batch model

Code: [Select]

batch
  disp,coor,1,100
end

both will do the same thing depending on if you are running interactively or in batch mode.

[Prof. R.L. Taylor]

The commands suggested place information in the Output file not the TPLOt files.  There are currently no commands that put lists of nodes into the TPLOt files.  You need to specify each node individually, it can be by number or coordinate (see manual for details).  You could write a user macro routine to do what you want, placing in a file you name.

[nathan]

Thank you very much.
 
Last question:

When I do this:
batch
tplot
end
DISPlacement,COORdinate,1,100


I have a xxxx.dis file which is created with 2 columns: in the first one, I have my time steps and in the second one I have a displacement value. I wanted to know if it was the average value of the displacements on the face ?


Thank you again

Nathan

[Prof. R.L. Taylor]

The output file should tell you which displacement the program selected.  It is as specific nodal displacement component, not any average.

[nathan]

Thank you for your help.

Nathan