Postprocessing in abaqus
Postprocessing in abaqus
(OP)
Dear all:
I have one 3D contact model with orthotropic material,in which *orientation is used to defined one rectangular local coordinate system. I'd like to view the stress in sort of x' direction which is the linear combination of the stresses of s11 and s33 in global coordinate system. I tried UVARM to define output variable. but it does not work.
Can abaqus viewer define specifical coordinate system to view the stress in any direction? thanks so much!
Sunny Q. Zhang
I have one 3D contact model with orthotropic material,in which *orientation is used to defined one rectangular local coordinate system. I'd like to view the stress in sort of x' direction which is the linear combination of the stresses of s11 and s33 in global coordinate system. I tried UVARM to define output variable. but it does not work.
Can abaqus viewer define specifical coordinate system to view the stress in any direction? thanks so much!
Sunny Q. Zhang





RE: Postprocessing in abaqus
corus
http://www.corusresearch.com
RE: Postprocessing in abaqus
Thank you so much. I have a further question then about UVARM. In UVARM, I use GTVERM get variables of "S". and creat two new output variables such as:
...
...
UVARM1=ARRAY(1)*2
UVARM2=ARRAY(1)+ARRAY(2)
...
...
Then in abaqus viewer, I contour these two variables. UVARM1 is exactly twice the amount of S11. but UVARM2 is amount between S11 and S22, where in my case, both S11 and S22 are positive tensile stress. I just wondering, looks like "ARRAY(1)+ARRAY(2)" is not just simple algebra,may be kind of vector adding. i do have no idea about how these results come out. I do appreciate your advice.
RE: Postprocessing in abaqus
corus
http://www.corusresearch.com
RE: Postprocessing in abaqus
corus
http://www.corusresearch.com
RE: Postprocessing in abaqus
Sorry bother you again. I tried TOOL->CREAT FIELD OUTPUT, and below output variable, there is one as:
Tag Name Type Description
S1f11_S S Tensor stress component
with many operators right side. My problem is, I cannot get stress component out, I mean, cannot get S11, S22 et. and combine with the operater. I checked related example, and only find one like: S1f2_s-S1f1_s, which is also not deal with component. Can you give some detail? Thank you!
RE: Postprocessing in abaqus
If I remember you simply click or type in the variable and then click on the operand. These should appear in a separate line in the box so you can see the operation you're carrying out.
Which element are you using and what did you use in your *El field data line?
I take it that UVARM is some sort of User Subroutine, which I'm not familiar with.
corus
http://www.corusresearch.com
RE: Postprocessing in abaqus
RE: Postprocessing in abaqus
With the UVARM you are working on stresses at the element integration points but plotting rsults at the nodal positions. Are you sure that nodal averaging hasn't in some way given you a different value to the one you were expecting? If you create UVARMs for ARRAY(1) and ARRAY(2) separately and print them out with *el print, then you could check to see if the additive operation is working or is in fact some kind of vector addition, as you first said.
corus
http://www.corusresearch.com
RE: Postprocessing in abaqus
RE: Postprocessing in abaqus
corus
http://www.corusresearch.com