Hi all,
I have found this equation in a paper (please see link below), the paper does not explain the "G" term, and I have not seen this before in an FE formula. Just wanted to check that this term was indeed "Force". Or am I missing something...
Hi all,
In the past a number of the engtips community have provided really nice advice on the checking of energies when running FE analysis and during the post processing of results. I am just wondering if there are any references to specific material on this subject so I can learn more. I...
Hello all,
I am a mechanical engineer by profession, I am planning a kit car building projech which will involved welding to learn and improve my skills. I would like to carry out the welding myself and therefore will need to learn as much as I can, does anyone have any experience with welding...
I understand that techniques such as FEA can be used to the mode shapes and natural frequencies of structures. I am wondering if finding out the mode shapes and natural frequencies can help in providing any information or inclination of the the materials ability to cope with contact conditions...
Hi all,
I have been through the relevent sections in the manual and understand the parameters to apply in a direct cyclic analysis using the Abaqus/Standard DIRECT CYCLIC Step, however. I am not sure how I apply my amplitude to my pressure load.
I want to apply 1000 load cycles, the time...
I am running analysis with an orphan mesh and the analysis exists with the following error message:
***ERROR: The volume of 1 elements is zero, small, or negative. Check
coordinates or node numbering, or modify the mesh seed. In the case
of a tetrahedron this error may...
Hi all,
I am trying to understand more about the contact properties used in finite element analysis packages. I am using Abaqus and I have been defining different values of friction coefficient between contact surfaces. The values I tend to use is between frictionless and 0.3. However I have...
Hi all,
I know if I have a simple 2D model a model a square along x-y, then I could simply look at S12 to determine the shear stress, but what about the shear stresses of a complex 3D model? I know there is also S13 and S23, but need some advice on this. I am particularly interested in the...
Hi all,
In you stress, strain and contact analysis simultations, I am trying to learn more about how the experts use energy results to confirm the validity of the results.
Thanks
Hi all,
At the moment I am running my Abaqus scripts through CAE using file -> run script -> scriptname.py
Is any code I can use in my python script to run it outside of CAE straight from the python interpreter?
Thanks.
I am trying to find the definition of a "rough" surface in terms of numbers, equations or something that can help me distinguish between a "rough" surface and a "smooth" surface.
You might ask why this is important? There are some "rough" surface mathematical models I have seen from Williams...
Hi,
I would really like to clear this up I have some stress stain curve data as follows:
stress (MPa) %
0 0
567 0.0008
600 0.021
640 0.053
690 0.11
680 0.1022
Can I apply this data directly into Abaqus? It seems that the...
Hello all,
I have a metallic material and I would like to find out the "dimensional wear cooefficient" of the material in the units mm^3/Nmm.
Does anyone know if and how this is possible?
Thank-you.
Hi all,
Just wondering if anyone has any experience with using Abaqus in combination with there graphics cards. I here Nvidia Cuda technology can help improve computational performance. I am currently looking for a new graphics card and wondering if I can purchase a cost effective option to...
Hi,
I would like some input from the community, to help reduce the complexity and run times of my FE analysis I sometimes use rigid backed components instead of deformable ones, e.g. instead of modelling a soft road where a tyre rolls over it, you just make the road surface rigid.
The problem...
Hi all,
I know tat we can take the nodal coordinates of a model from the .odb file. I would like to know if there anyway of changing the coordinates of the model in the .odb file to be re-run in abother analysis.
Thanks
Please help, I really need some inspiration from other FEA users.
I have a problem involving contact between two objects, and the objects move relative to each other, could you please share some experiences of how you achieve this in FEA programmes. I am currently using ABAQUS.
Thank-you.
Hello all,
I would like to get some input from experienced engineers and materials scientists. I am after the stress-strain curve to use the data for my FE analysis material model. The material is a particular ASTM material. I have not been able to find the material data available and so it...
Hello all,
I am writing a python script and for part of that I would like to obtain the nodes, coordinates and displacements which are within the geometry "surface set" that I have defined on a surface. Is it possible to do this, if so, how would this be done. Thank-you, really appreciate your...
Hi, is there anyway to force abaqus to use more RAM during the analysis. The total amount I state in the job module never seems to get used during the analysis. Just wondered if there was a way to make abaqus use all the ram I state to speed up the run times.
Thanks.
