Hello everyone, I am modeling an AM process called SLM, on which a laser scan a powder bed in order to build a part. I am currently having problem with the phase-transformation phenomena (from powder, to liquid and finally solid), since a lot of work done on the field are using different approaches and mostly of them are not in my scope (modeling crystalline micro-structure formation and liquid flow). I already have a lot of data for temperature dependent properties (thermal conductivity, heat capacity, coeff. of expansion, etc).

Since I want to account for temperature distribution and thermal strains, which method would be advisable and would be quickly to implement?

I have read about account for the solid or liquid fraction into the enthalpy formulation, but I don't know which subroutine or how to implement it.