Ansys AM Simulation Research Papers

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bblackford posted this 1 weeks ago

Hi all,

I'm a masters student working on metal AM modeling. I'm wondering if anybody knows of non-confidential research papers or documentation that discusses the process of how specifically the ANSYS additive solver works in more detail. My specific question is if the solver models the laser motion, or just heats full layers all at once. In my experience, the former is too computationally expensive. I understand that this is a tricky subject and may be completely confidential, so any help would be great.

Thanks in advance.

SandeepMedikonda posted this 1 weeks ago

You are right modeling every single deposition layer is very expensive and impractical, Ansys uses what we call a lumped-layer approach which basically accounts for several laser passes/deposition layers at once. 

We also use Weak Coupling, i.e., a full transient thermal analysis is performed after which a static structural simulation is performed.

I've previously provided some references to Ashish here

You can learn about the methodology and setting up one from the documentation. There are also several test cases in the verification manual from which you can learn from.

P.S: Please post all Additive manufacturing questions in the Structural Mechanics Category (I'll move it this time). Also, take a moment to review the Guidelines if you haven't already.

Regards,
Sandeep

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