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fire simulation

fire simulation

fire simulation

(OP)
My aim is simulate the structural response of a plate with pressure applied under fire condition.

To that extend I know how the temperature variates in time (known T(t) t from 0 too 3600 sec) also I know the material properties and Sy to every temperature.

I thought that the best way to do this is by applying the T(t) as BC in the structure and use coupled temp displacement in one step.

But I don't know if this approach is correct.

I also tried to solve only for the temperature curve in one step without the pressure using coupled temp disp and then insert the results in a 2nd step general static where I applied the pressure load.

I got different results for both approaches.

Does anyone know what is the best approach for this kind of problem?

thank you for your time

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