I have recently started using abaqus for modelling the pre-forming of dry carbon fibre fabrics and was looking for some advice. I have quite a good ability to model homogeneous solids but moving onto anisotropic bodies that undergo large deformations is proving to be troublesome. I have read through the tutorials in the users manual regarding forming of sheet metal and things like that, but I'm hoping someone could direct me towards any website that might have a more specialised tutorial, or if anyone has experience with this type of simulation, perhaps we could discuss some of the errors I am encountering. (There is not many, but they are tricky to resolve!)
Thanks in advance for any assitance you can be.
we know that axial load effect on dynamic responses of structur ( for example comparsion axial load decreas frequencies) and Modal analysis does not depend on load too.
i want to obtain dynamic responses for simply supported beam under axial load. How do modal analysis in the presence of axial load in ansys (How apply effect of axial load)???
plz help me
I want to simulate the deep rolling process(as seen as in attachment)
in this model I defined 2 steps,at first, the rigid ball create a pressure to cylinder to create residual stress and at the second step the ball begins displacement with
a low speed in direction of cylinder longitude to create surface overlap, while the cylinder is rotating in both steps.
in this model I have used the explicit solver but it takes too much time and elements convergence cannot be accomplished.
how can i reduce the time of my solution?
or if u can please offer me another appropriate idea for this process?
Does anybody know which version of Intel visual Fortran and Microsoft Visual Studio are compatible with Abaqus 6.13-1? Thanks for your help.
I tried to simulating crack propagation with XFEM method in porous media (rock), but got error code 144 (like this error" the executable C:\SIMULIA\Abaqus\6.9-1\exec\standard.exe aborted with system error code 144. Please check the .dat, .msg, and .sta files for error messages if the files exist. If there are no error messages and you cannot resolve the problem, please run the command" )
Hi Dear All
I have simulated a beam weakend by blunt V-notch. I want to define a set around the notch tip utilizing my desired points borrowed from the computer programming. How could I define this set?
I really apprciate if any one could help me.
I have installed the ANSYS 14 package, All the included softwares are working properly except Fluent.
during start up the following message appears:
I have a problem to extract the the iges file of a geometry in ANSYS. I use the following path : Main menu>
Archive Model>Write, then write the iges file of the geometry into a file. But this
file cannot be used in other softwares such as Solidworks or ABAQUS. Has anyone ever faced the same problem, if
yes, could you please help me to solve it? Do you have any other suggestion than using iges
or cdb file to export the geometry from ANSYS to other softwares such as ABAQUS?
i am kind of newbie to Abaqus, in learning phase. My question is regarding creating new parts from existing part in abaqus, kind of splitting activity similar to slice feature in ANSYS Designmodeler. As far as my regular activity in Ansys workbench, i require to slice body in designmodeler, to create new volumes, to refine mesh, or to define contacts with different status.have limited access to modeling software, so basically work with simulation software pre processor.
tried using partition tool , but probably from my learning it only allows to create new volume in existing part. tried with copy part but it does not allow to suppress the parent geometry and to allow only new partition cell.
I am working on vufiled subroutine for abaqus. I already have a named common block statement in my vfriction subroutine. I need the values from the common block be read in vufield subroutine and passed further / saved to a field variable to be able to plot a contour plot.
Can anyone share his ideas about the coding or have an advice for me?
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In modeling wheel-rail-contact, I use the node to surface contact discretization approach. The wheel nodes are the slave nodes and the rail surface is the master surface. I just adopt the default tracking approach and the default strict constraint enforcement method. But, after the train moves some distance, it'll return back to the original position before reaching to the final destination. The master surface is sufficiently long and I think the amplitude function, boundary conditions etc are defined clearly. So, what's wrong with this? Does this have something related to surface smoothining or the direct contact constraint enforcement method? Please forward me your comments either for this specific case or more generally for a moving load.
I'm doing a dynamic analysis and optimization of high speed railway bridges. After developing the abaqus input file (*inp), the following errors have occured and I was unable to solve them. I have attached a picture showing the node number that I used to model the train. the car body and the bogies are model as a rigid body in which nodes 6001,6004 and 6501 are the reference nodes.
1. An overconstraint problem. it says "Zero pivot when processing Node 6004 d.o.f 2, node 6004 d.o.f 6 and node 6001 d.o.f 6
2. I think due to this problem, the force and moment equlibriums did not converged. Sometimes the contact constraints did not converged
Hello everyone.. Consider a cantilever for sequential load steps in abaqus.
Fist step I want to apply imposed displacement of 2mm at free end.
2nd step I want impose +/-6mm Z displacement at free end (total 3
cycles. (One cycle= +6 and -6 mm in z direction)
Can somebody let me know how to do this. how to define two steps ?
Thank you in advance
I have one question concerning the TSHR (transverse shear stresses) output request in application of Thick Shell S8R elements in Abaqus/standard.
the follow qarning occurs: Output request tshr is not available when *transverse shear stiffness is specified on the *shell section definition or a material in the shell has been defined without *elastic
Can anybody please help with an advioce or two, on how to solve this?
all the best
You should access the abaqus results (*.fil) file via MATLAB.
In order to take your results into a fil file you should specify
*FILE FORMAT, ASCII along with *EL FILE and/or *NODE FILE, etc. options
in your abaqus input file (assuming that you run Abaqus/Standard).
After creating the results fil file, go to section 5.1.2 of the
Abaqus Analysis User's Manual to find details about how to read the fil
file. You can use this information to read this file using MATLAB.
I have developed a MATLAB function which reads such files (it reads
only information about stresses and displacements, but it can be
generalized to include any other quantity).
I am writing a python script for modeling aggregates in a concrete cylinder. I have created a all the particles and and specified section properties to them and to the cylinder.
The procedure I am using is to merge the particles and the cylinder while retaining the boundaries. If the sctions are assigned to the parts before merging, the result is the cylinder with the specified section assignmentsfor each part.
I wrote the code in python but seems like it does not include the section assignment to the new part from merge.
Here is my code for merge:
I wanna model Methane gas esplosion in a room by Autodyne.
what's the best EOS for modelling Methane in the room? and how can gain its parameters?
I am trying to model ply dropoffs of composite materials ,because I am working on a contact problem of bolted joint,so I choose continuum shell rather than shell ,but it seems that the ply thickness will change at a ply dropoff region. Does anyone knows how to solve this problem?
I have a user subroutine (UEL) written in Fortran that was running correctly when I used Abaqus V6.5 (in XP) and Compaq Visual Fortran to compile. I was running as abq654 job=s00 user=abafer.for inter.
We usually use Microsoft visual studio's version to do Fortran/C/C++ coding. Many reserachers are facing problem with versions, appropriate compiler or even with copyright issue. "Eclipse" can replace VS in everyway. The advantages are:
I need to model a shell element which its task is just load
transferring. This shell shouldn’t take part I the analysis process, so it shouldn’t
has mass, stiffness and thickness, with this characteristics how can
I make this element with these properties?
I am a bit confused about a simulation of brittle cracking presented in "ABAQUS EXAMPLE MANUAL" 1.1.5 Collapse of a concrete slab. I was trying to re-simulate the example on my PC and I got really weird results force (RF3) vs. time read in the support point.
Please have a look at attached picture. I download the file mnneice_5.inp from Example 1.1.5 calculated and got totally different resuls. Does it have something to do with setting of my Abaqus software?
Can somebody do the same and check this out?
Thank you very much for any help!
To solve several consecutive run automatically by abaqus can get help from the following program:
First file in the file path. Inp place available.
Then run the file name. Inp file and cpu, and the amount of RAM required by the MB session.
Inp file name (without extension and tandem) and enter them below, separated by a space.
Note: Before entering the first name inp file, insert a space.
hi can anyone know how to analyse a microstructure in ABACUS,what are all the preprocessing steps we have to do before solving in abacus like (how to convert into cad model,meshing etc)