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residual stresses of thermal spray coating process (COMSOL v4.0a)

residual stresses of thermal spray coating process (COMSOL v4.0a)

residual stresses of thermal spray coating process (COMSOL v4.0a)

(OP)
Hi,

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

RE: residual stresses of thermal spray coating process (COMSOL v4.0a)

Are you doing a transient analysis?
This is normally done through boundary conditions on the solid.
 

peace
Fe

RE: residual stresses of thermal spray coating process (COMSOL v4.0a)

(OP)
Yes I'm doing a transient analysis.

I have found a way to solve my problem.
I use one solver to solve each step of my process.

So there are 10 solvers and the initial values of solver N+1 is the solution of solver N.

It's working well!

Alexis

RE: residual stresses of thermal spray coating process (COMSOL v4.0a)

I used to work in a rocket factory with a guy named Alex Deak.  Structures wizard.  Any relation?

RE: residual stresses of thermal spray coating process (COMSOL v4.0a)

(OP)
No relation btrueblood :)

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