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@IceBreakerSour, what exactly do you mean when you say Explicit does not enforce equilibrium? It time-integrates Newton's second law, so that is enforcing force balance, and hence equilibrium, at every step right. Right? Also, what does stabilisation through inertia mean? Shouldn't greater...

So you mean a dynamic, explicit analysis?

No, it's just supposed to replicate my bending a sheet of paper with my hands, and then taping up two ends. Can you think of a direct equivalent to that in Abaqus?

Interesting! The rigid cone seems to be the easier solution. Could you tell me how to go about wrapping something over something else in Abaqus?

Hello, I have a simple conceptual toy problem that I am trying to implement in Abaqus, but without success. Could someone please help me? I have a cut sector of an annular sheet (see picture). Imagine it to be made of paper in real life. If I now bring the two edges (lying along the x-axis...

So, to summarise, dynamic analyses (explicit or implicit) always require a mass densit, whereas a static analysis only requires it for gravity/inertia loads? Perfect, thank you!

Hello, I had a question relating to the difference between Explicit and Implicit solvers, especially in the quasi-static limit. I know that Abaqus simulations require us to specify a mass density. I can understand that this is essential for Explicit jobs, which are designed to take inertia into...

OK understood, thank you very much.

And can I read these files directly using software like Matlab? Or what do I need to read these files?

Thank you. If I have understood correctly, for a Standard analysis, this generates a .fil file, and for an Expicit analysis, this generates a .sel file? Can both of these be read later in Matlab as a text file?

Hello, I know that one can plot the surface normals in Abaqus using Plot->Orientation. I want to know the values of these (unit) normals, i) either by copying it directly from Abaqus, or better still, 2) extracting these surface normals using python as part of post-processing, much like any...

I have plotted out various energies in both Implicit and Explicit, but none of them seem to tell me anything about numerical dissipation. Among all the energies here (https://abaqus-docs.mit.edu/2017/English/SIMACAEGSARefMap/simagsa-c-qsienergybal.htm), the only ones of any importance to my case...

The static solver didn't work. The job ended with an error before even finding any wrinkling. Can you suggest any other solvers?

Okay, I will try out the static solver then. Maybe that will help.

Yes, I looked at all the energies. What do you mean by different solver settings? Could you please elucidate?

Hello, I asked a question on Engineering Stackexchange, but I think it might have a better chance of being answered on this Abaqus-only forum. Can anyone help me? The post has all the details, including pictures...

Great, thank you!

Understood. So for a quasi-static application, instability should generally not be an issue. Is that correct?

And are there any adverse effects to this numerical damping? Could it lead to instabilities which give me an un-physical answer?

Hello, I am using dynamic, implicit integration (quasi-static mode) in an analysis, and I am trying to understand how it works. The documentation (https://abaqus-docs.mit.edu/2017/English/SIMACAEANLRefMap/simaanl-c-dynamic.htm) talks about using 'numerical dissipation'. What does that mean? How...