I wonder if you are able to assist me with the DFLUX subroutine in Abaqus.
Thus far I have been able to simulate the moving surface heat flux from a laser beam with a Gaussian distribution over the surface of a powder bed. From literature I understand that the laser's energy penetrates up to 0.4 mm below the surface of the powdered material I am investigating. However at that depth, only a fraction of the original heat flux would be observed.
I was thinking of describing the heat flux as some function of distance P(x) and adding it to the subroutine. I already have the data to construct the function I just need to incorporate it with a subroutine in order to simulate a volumetric heat flux in Abaqus.
There are specific subroutines introduced to Abaqus in the 2017 release to assist with additive manufacturing.
Check the following to get started:
UMDFLUX
UEPACTIVATIONVOL
It is not simple to use them from scratch, however you should be able to request the AM plugin from Simulia to give you an example of what you can achieve with these powerful features. If you can't access it yourself I recommend to contact your support person.
Best regards,
David
Thanks David, I was unaware of these new features. I will have a look at them. Hopefully it will save me a lot of time and effort!
Yes I agree, they are very powerful features, it is definitely worth looking into it rather than reinventing the wheel!
Good luck with your work!
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