Of all the solvers, (and someone can correct me if I am wrong), I believe that only ABAQUS provides an explicit and an implicit solver. The explicit solver excels at shock and impact, while the implicit solver does the traditional non-linear (and linear) analysis including heat transfer. Both...
Is it a cylinder block or actually a cinder block? If you are dropping a cinder block onto a sheet of plastic from a significant height then good luck - you'll need it! You may as well be using MS Paint for your FEA results.
All teasing aside - if the impact speed is significant, then you...
Has anyone used queuing software with ABAQUS? I believe ABAQUS works with LSF, but I was wondering if anyone has tried the free OpenPBS or PBSPro (from Altair)?
With Version 6.4 ABAQUS came out with a distributed memory version of ABAQUS/Explicit which begs to be used on a cluster, but then...
Don't forget ABAQUS, it's solver is also very effective at linear problems and will allow you to do the fully coupled thermal stress problem.
Also, many packages do not allow you to pre-load a structure prior to extracting vibrations. This pre-load may be in the form of thermal stress due to...
1. Without contact I would expect you to get identical results with both elements. The "M" is more expensive, that is, requires more memory to run.
2. Never ever use C3D10 in contact. Always use C3D10M in contact.
You can mix C3D10M and C3D10 elements - but I would not trust the...
D is the compressibility. Although some books refer to rubber as incompressible, it is about as compressible as water. In reality, rubber is far more compressible than something like steel, but it's shear modulus is so low that the incompressibility is relative.
The bulk modulus for rubber is...
1. This test is extremely difficult to do accurately. The friction effects can have a large influence on your test data. In order to properly run this test you need frictionless platens. You can try and lube them, but you have to observe your puck accurately when running the test - if there...
If you are applying displacements you will want the output variable identifiers: RF1, RF2, and RF3. These are your reaction forces in the 1,2, and 3 directions.
The best way to do beam to beam contact is to take the problem into 3D, run in /Explicit, and use general contact.
You have to use /Explicit and 3D, general contact is not available in 2D or in /Standard.
General contact will create an influence radius around the beam elements based upon the...
This means that you are deforming the element faster than a stress wave can propogate across it. In effect - you are breaking the sound barrier.
Most often the cause for this is inconsistant units. Be sure that your material density is correct. Remember that the density of steel is NOT...
Check the example problem on fluid sloshing. I believe you want to specify the direction in which the gravity is acting - so you may want to specify 0,-1,0 instead of -1,-1,-1.
Like I said though, look into the documentation for the fluid sloshing example. They used /Explicit and adaptive...
First, use coupling rather than beams. You could easily overconstrain the model with beams. If the beams are rigid, or nearly so, then everything that is touched by a beam will be stiffened by it. With distributed coupling you can transmit a load into a structure without overconstraining it...
Distributed coupling is new in 6.4. You have the option of how you want the distribution to occur, linear, quadratic, or cubic.
This looks like it allows for a load transfer into a surface. The points all move together in an average sense, but are allowed to move.
Look in the interaction...
Brad,
I don't know why this one irks me so, but I can't seem to just let it go. Sure you can collapse elements into pyramids, but if you're going to do this don't call it a hex mesher, call it a pent mesher instead, or a penthex mesher.
69thbugler, I wish you luck and I truly hope you have...
