Hi,
I was wondering if anybody can help me to find out how the mentioned " Enhanced immersed boundary" method in Abaqus user's manual is implemented. What are the equations for the structure-flow interaction/contact? Are they the same as explained in Peskin's paper on immersed boundary method...
Hi Rob
Thank you!
As you see, in your Force-time graph, the "linear" curve, which you probably obtained by toggling nlgeom "off", is more non-linear ( force magnitude-wise uplifted compared to the linear relationship that you can get by extrapolating the common linear part of the two graphs...
If you have already run the simulation, you realised that the RF2-U2 relationship is linear when nlgeom is on and non-linear when nlgeom is off. However, this should be the other way around. Like the examples of skewplate in linear and non-linear analysis, or axisymmetric mount with nlgeom on...
Plaese find attached the *.INP file of the mentioned case.http://files.engineering.com/getfile.aspx?folder=187d656d-79f9-4b98-a27e-b2b692888d49&file=ShellCompNonLinear.inp
Sorry for the confusion caused by the structure of my message. The NLgeom is "on" during the simulation. But, The results that I get at the end are not consistent with my expectations.
The case that I am simulating is the deformation of an axisymmetric shell between two rigid plates. The shell...
thread799-158806
Hi
In a large, non-linear deformation of a spherical capsule, when I use NLgeom, at the end of simulation, I get a linear Force-Displacement graph. This is strange, because I know that in this case, force-disp relationship should be closer to that of a second order curve not...
