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Negative Volume
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Joined: January 16, 2019 3:58 am
Last seen: November 25, 2025 7:59 pm
Topics: 13 / Replies: 659
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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...

4 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...

4 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...

4 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...

4 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...

4 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.

4 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...

4 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

4 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...

4 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...

4 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!

4 years ago
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RE: Should I use Cylindrical Constrain ?How?

Hi @mass, I've never tried using a cylindrical constraint like you are mentioning. I'm not sure if you can apply a cylinder constraint to *Boundary...

4 years ago
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RE: Roll Forming Simulation Problem

Hi @driver_x, I'll need some more details about your simulation if I am going to be able to help. What is supposed to happen during your simulation...

4 years ago
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RE: Contact Penetration

@viky113 Is the foam nodally connected to the green curved bar? And is the bar rigid?

4 years ago
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