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FSI issue in abaqus co-simulation: misaligned nodes
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Hi everyone,
I am performing FSI simulation under abaqus.
The simulation consists in a porous solid (elastic isotrope and homogeneous under Abaqus/explicit) filled by a non newtonian (viscous fluid under Abaqus/CFD). The whole is contained in a cubic shell in order to apply proper boundary condition.
Questions about UEL
Hi everybody,
I have a UEL for truss element (T3D2). I'm calling and reading some .dat files inside of the UEL. I'm just reading these files inside of the UEL without doing anything to them or with them (It's just a test case). Here is an example:
OPEN(101, file="C:\Users\ak1070\Desktop\UMAT-UEL-UELMAT\UEL TEST\V1.dat", status='old',form='formatted',&
Abaqus 2d contact model not working
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Normal
0
21
false
false
false
DA
X-NONE
X-NONE
Hi
Sorry in advance, but this will be a long story...
Thank you for taking the time to look at it! :)
I have a 2D model that worked fine until a couple of
days ago where I tried changing the mesh a bit. Now when I try to run it aborts
calculation and gives some of the following errors:
- There are 14 unconnected regions in the model.
Question about UEL
Hi every body,
I'm a new user of UEL and have a questions. It would be very kind of you to help me with it.
I have a MATLAB code which gives me some big matrices. Is it
possible to save them as a file (.txt, .dat, etc) and call them inside
of the UEL? (It's almost impossible to change all of those codes to
FORTRAN or copy-paste them to UEL.)
Thanks in advance,
Best Regards,
-------------
Ashkan
Modeling a cardboard material model in Abaqus
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Hello all,
For a project I want to model a cardboard package model. Basically I can even approximate a material responses, but I just want some material that can be used as packaging, such as cardboard. I am solving this problem in Abaqus. However I do not need to write a UMAT for that, any built in 'similar' model can work for me. Can you suggest some such materials in Abaqus?
Abaqus Eigen Value Analysis Error
Hello,
I am having issues running an Eigen value simulation on a bridge model that I have developed. The model consists of a bridge super-structure supported by pinned connections on the ends of the bridge length and a roller support in the middle.
The model runs without errors when I do not request an Eigen value analysis, but aborts when I request an Eigen analysis. The message file sites the cause as a factorization error. Warnings also appear stating a zero pivot when releasing the 1st dof of the nodes associated with the roller connection.
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Calling a File inside of the UEL
Hi everybody,
I'm writing a User Difined Element (UEL) for my research.
Would you please let me know if it's possible to call a file (txt, dat, etc) inside of the UEL or not?
Example:
IF (LFLAGS(3)=1) THEN
OPEN (UNIT = 10, FILE = "AAA.dat", STATUS = "OLD")
READ (10, *), StiffnessTable
AMATRX=StiffnessTable
END IF
Thanks in advance,