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Stress evolution during solidification

Posted: Tue Jun 14, 2022 5:31 pm
by G_azizi
I am trying to simulate phase transformation and thermal stress evolution during steel solidification. the elasticity and TLE data are correct I think. but the stress level I get is unreasonably high (around 10000). is the stress output unit MPa? if yes, it is totally wrong.
I have attached a screenshot of elasticity data, BCs, convergence criteria, and xx-stress output.

Would you please help to find the problem? why stress level is so high?

Re: Stress evolution during solidification

Posted: Tue Jun 14, 2022 11:53 pm
by Bernd
Hi Ghavam,

I think the problem could be that the thermal expansion coefficients which you are using are 2-3 orders of magnitude too high. It is length and not volume expansion which is required here.

Bernd