As it says, DTO is a defined initial timestep. If you are not familiar with the concept of timesteps I suggest you read about it: The timestep in a s...

Yes, that would mean that the square tube is rate dependent, meaning in this case that it has a stiffer response at higher rates. If you prescribe the...

Yes that looks correct. Have you tried to simulate this in implicit yet? I ask because I see that you have a contact defined between the blue impactor...

The mesh size looks good. One thing to note however, you have modeled this structure with an inner and outer shell. Is this what was required? I would...

Oh you are correct sorry, 280ms for the ASCII options (280000ms total sim/1000 output points=280ms). Yes, refining the mesh will drastically increase ...

That duration of a simulation is fine for Implicit analysis. You should set your ASCII output frequency to however fine you want your data, usually qu...

First off, make sure your unit system is consistent. This is a bit of a hard concept to grasp as there are not settings to just define the unit system...

Hi Fadhaleehamid, please create a new topic in the LS-Dyna forum for your question on "Hollow cylinder compression". Please do this for any new topics...

Yeah, I believe that second option with the submit form is what you are looking for. This link should point you here:

Ah, I apologize. There was a setting for new users where you needed a min number of posts to attach a file. It should be fixed now!

Click "Choose File" down in the reply box shown here attachment_image.PNG

So you could ”simulate” a lanyard or spring using 1D *Element_Discrete and definite the part as a type of spring material. Or you could try to explici...

So there are a few factors to take into consideration. If the model that you are running is relatively small and simple and you don't have many *Inclu...