Hybrid Welding Simulation

[metewelding]

Hello,

I hope all of you are doing well.

I have a serious problem about hybrid welding simulation. I have done some laser welding simulations on Abaqus with using DFlux subroutines (transient).
Right now, I have to implement another heat source. I did some experiments with CMT+laser and Pulsed MIG+laser and I want to compare the thermal data from my experiments with the simulations. I think I need serious help about integrating another heat source into my simulations..
Is there any possibility to do this? Can I add second heat source into my DFlux file and run the same simulation?
I have no expertise about this field, may I ask if anyone can help me? Step-by-step clarification would be so nice.

I hope I do not want too much things, but if you could help me, that would be awesome.
You can find the .f file as attachment

Many thanks,
Mete

 

[metewelding]

You can also find the CAE file which I had created to simulate laser welding.

 

[FEA way]

It looks like you attached wrong file to your first post. It’s not a Fortran file with subroutine code.

For such purpose I would use UMDFLUX instead of DFLUX. This subroutine is designed for modeling of multiple moving heat sources. It was added to recent versions of Abaqus along with other features that facilitate additive manufacturing and welding process simulations. You can find the detailed description of all these built-in capabilities (including UMDFLUX subroutine) in the Abaqus documentation.

 

[Matthew_19]

The first file is missing a FORTRAN subroutine, it looks like aluminium data. If you attach your heat source subroutine I may be able to help as I am currently doing the same.

 

[metewelding]

Hi Matthew_19,
I would be so appreciated for this and I am really sorry to not upload the correct file.
I am attaching the Fortran file. If you can help me, I would be so appreciated.
I tried to use JLTYP function, but I think I could not do it.
If you can check it and help me about this, I would be so appreciated.
Many thanks,
Mete

 

[Matthew_19]

Hi Metewelding,

After reading your subroutine file it appears you have specified one heat source moving in a single pass (x direction) was the simulation only to run a single track? Further to this, as FEAWAY suggests you would need to use UMDFLUX as this function allows you to add multiple stationary/moving transient heat sources to a surface/body. Have a search for 'UMDFLUX' examples to talk you through, I am sure there are either YOUTUBE or similar examples on the DASSUALT 3D experience. The JLTYP in DFLUX is for single load application on element, node or such.

 

[metewelding]

Hi Matthew_19,

Thank you for this.
During my simulation, I have to apply single one pass with 2 moving heat sources for just single track, like hybrid welding with 2 moving laser source. They will apply heat in the same time in the same direction, it will be finished in the same time. I do not want independent moving heat sources. Can this be applied with DFLUX instead of using UMDFLUX. I am also not sure my institution has licence for Abaqus with Welding & AM plug-in, that is why, I want to use DFLUX. May I ask if this is possible?

Many thanks,
Mete