[K.H. Wang]

Hello,I am using MAT020 for coil and MAT024 for tube to analyze the drawing process under induction heating. I want to display the deformation of tubes by using LSDYNA.

However, there are some errors after running the lsdyna.

It said the FEM-BEM solver didn't converge, then how should I change the parameters in EM_CONTROL card?

If anyone has dealt with this issue, can you please share the procedure you used?

Thank you very much.

kuanhuan

[James M. Kennedy]

Dear Kuanhuan,

 

L'Eplattenier, P., and Caldichoury, I., "Validation Process of the Electromagnetism (EM) Solver in LS-DYNA V980: The TEAM Problems", 12th International LS-DYNA Users Conference, Dearborn, Michigan, June, 2012.

 

http://www.dynamore.de/de/download/papers/2012-internationale-ls-dyna-users-conference/documents/electromagnetic02-b.pdf

 

L'Eplattenier, P., and Caldichoury, I., “A BEM method for Electromagnetics in Complex 3D Geometries”.

 

https://ftp.lstc.com/anonymous/outgoing/inaki/docs/pdf_em/preprint_bemMrm38.pdf

 

Kielhorn, L., Ruberg, T., and Zechner, J., “Robust FEM-BEM Coupling for LS-DYNA EM Module”, 15th International LS-DYNA Users Conference, Dearborn, Michigan, June, 2018.

 

https://www.dynalook.com/conferences/15th-international-ls-dyna-conference/electromagnetics/robust-fem-bem-coupling-for-ls-dyna-r-s-em-module

 

https://www.lstc.com/applications/em

https://www.lstc.com/applications/em/test_cases/classic

https://www.lstc.com/applications/em/test_cases/team

 

https://www.lstc.com/applications/em/documentation

 

Sincerely,

James M. Kennedy

KBS2 Inc.

March 6, 2021

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[James M. Kennedy]

L'Eplattenier, P., Ashcraft, C., and Ulacia, I., "An MPP Version of the Electromagnetism Module in LS-DYNA for 3D Coupled Mechanical-Thermal-Electromagnetic Simulations", 4th International Conference on High Speed Forming (ICHSF 2010), Columbus, Ohio, March, 2010.

 

https://core.ac.uk/download/pdf/46909746.pdf

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