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residual stresses of thermal spray coating process
Posted 16 giu 2011, 05:20 GMT-4 Heat Transfer & Phase Change, Structural Mechanics Version 4.3b 3 Replies
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I'm trying to simulate a thermal spray coating process, with COMSOL Multyphycis v4.0a.
My model is a multiple-layer Fe3Al / Al2O3 gradient coating on carbon steel substrate. I use a 2D axisymmetric geometry.
3 steps are needed to simulate the deposition of each layer :
- pre-heating of the substrate (or pre-deposited layer) (h=300 W/m².K and T=3000K)
- deposition of the coating layer
- cooling-down
The coating is composed of 5 layers.
I use 6 physics "Heat Transfer" for the thermal analysis. I would like to know how to use the final temperature of layer N as initial temperature of layer N + 1 .
Thanks for your help!
Alexis
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I want to use final temperature of "Heat Transfer" N as initial temperature of "Heat Transfer" N+1.
Regards,
Alexis
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The 10 steps of my process (pre-heating1, layer1,......, pre-heating5, layer 5) are solved by a different solver.
Each solver has as initial values the solution of the solver before. I have updated the geometry as one goes along.
It's working, but I would like to know if there are more simple ways to solve my model.
Regards,
Alexis
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Now I am doing exactly the same same work as you have done by COMSOL, I would like to konw if you have found the better and easy way to solve this multilayered coating by using 'birth and death unit' in COMSOL?
Thank you