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Roll Forming Simulation Problem

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Posts: 2
Topic starter
(@driver_x)
Unpaid Intern
Joined: 3 years ago

Hello,

Last two weeks i am trying to make roll form simulation on ls-dyna but i get bad results as you see in screenshot. I am trying to form copper sheet plate which is thickness 1.2mm What is the problem and can anybody help me for k file setups. Thanks. 

 Bad Result
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Negative Volume
Posts: 676
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(@negativevolume)
CEO
Joined: 6 years ago

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? And does the simulation look fine up until the point in your screenshot? Are there contacts between the parts?

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Posts: 2
Topic starter
(@driver_x)
Unpaid Intern
Joined: 3 years ago

Hello,

Thanks for your answer. I am trying form like that in the photo and attached the step file for rollers.In my k file and step format model is in link below. There are no contacts between parts. Only i give automatic contact surface to surface by their part id's.

For step model  https://drive.google.com/file/d/1ku4VbW9qiUZKWzmhgnVxk8mGTSIkbLka/view?usp=sharing

For k file  https://drive.google.com/file/d/18vcdRq-4i_N9wDUNh3PbfhqDwaXpqLqr/view?usp=sharing

 Sheet Form
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