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Abaqus odb output does not match results file output for tetrahedron pore pressure elements

Abaqus odb output does not match results file output for tetrahedron pore pressure elements

Abaqus odb output does not match results file output for tetrahedron pore pressure elements

(OP)
Hi,
I am doing structural analysis with 3D tetrahedron pore pressure elements (C3D10MPH). My problem is that my odb output which I can see using abaqus viewer is not in accordance with the results file output. For some reason when I use the "POSITION=CENTROIDAL" attribute the values from the results file reduces to about half of the values in the odb output. I don't know why this happens, as the output from the results file seems normal when I omit the "POSITION=CENTROIDAL" command. Does anyone know if one has to take special considerations into account when using "POSITION=CENTROIDAL" on C3D10MPH elements?

My output requests in my input file looks like this:

*OUTPUT, FIELD, FREQUENCY=100
*ELEMENT OUTPUT, elset=all_elems
VOIDR
**
*EL FILE, elset=all_elems, FREQUENCY=100,POSITION=centroidal
VOIDR
**
*End Step

Thanks,

Skrallex

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