Negative Volume
Negative Volume
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Joined: January 16, 2019 3:58 am
Last seen: October 10, 2026 3:04 pm
Topics: 14 / Replies: 661
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RE: the length of the command line...

Hi @kamrani, As a test, try moving your model to a shorter path (folder in C: if local) and shorten your file name. See if that works.

5 years ago
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RE: increasing LS-DYNA run time abnormally

Hi @kamrani, How many cpus are you running this on? Or a better question is are you running this on a local computer or a cluster/HPC? Also, you ...

5 years ago
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RE: No Separation After Contact

@icebreakersours I've never tried to implement a contact where it "sticks" after impact but I believe that the way I described would be how to do it. ...

5 years ago
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RE: Impact Analysis......Object not rebounding after impact

Hi @jesner1981, Sorry for the late response. Your issue seems to be with your material densities. The tube mass is 70 (units), head of the tube mas...

5 years ago
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RE: Composite analysis on LS DYNA

@floz Right, so my question was targeted if the model was "done" then it already should of had the proper *Database cards defined so that you can extr...

5 years ago
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RE: NaN-Error in resampled stress-strain-curve data

@maria_rodriguez Ooof, yeah Dyna can do some weird things with automatic resampling curves. I never really trust it to do this TBH so I would just try...

5 years ago
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RE: No Separation After Contact

Hi @kingoz79, You would need to define a tied contact between the two parts. There are a lot of different ways that you can do this so you will nee...

5 years ago
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RE: NODOUT accuracy

Hi @kingoz79, Have you also defined *Database_binary_d3plot with dt=1.25e-3? I'm not sure why LS-Dyna wouldn't be giving your outputs at the freque...

5 years ago
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RE: I am tying to solve a non-linear problem using Ls-Dyna IMPLICIT solver. However, I am unable to achieve convergence.

@ssdng Hmm, it seems the webpage that I originally linked is either down or no longer exists. Let me see if I can track it down for you.

5 years ago
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RE: Composite analysis on LS DYNA

Hi @floz, Have you reviewed the LS-Dyna material user manual for MAT 022 COMPOSITE DAMAGE? There are quite a few insights there that might impact h...

5 years ago
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RE: Rigid body rotation around a remote point

@emirhan-dyna make sure your file is either a .k or .dyn

5 years ago
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RE: Rigid body rotation around a remote point

@emirhan-dyna I'm believe you need to fill in the NODEID in the *Part_inertia to be the node id of that grey node in your image where you want the rot...

5 years ago
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RE: How to get part accel/Velocity data in local axis ?

Hi @jazimsohail, Is this a model that you made or are working on creating? Because normally you would define a local nodal output via *Database_his...

5 years ago
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RE: LSDYNA Bird Strike impact pressure vs time plot

@paulvazz Yeah this is great information to know, nice job!

5 years ago
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