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How to use solid analysis's stress to be a function of another diffusion analysis's coefficient?

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Hello,everyone!

I am doing an analysis coupling of structural mechanics and classic PDE Convection-Diffusion Equation.

I make two physics and two study in the model and I can analyse them seperately.

Firstly, I will do the study1 (structural mechanics) and get von mises stress, "solid.mises."

Then I want to analyse the PDE Convection-Diffusion Equation (study2) in which the equation is da(∂u2/∂t)+▽(-c▽u2)+β▽u2=f

I hope that "da" can be a function the "solid.mises." that means the coefficient is different in each element according to their stress situation.

I search in the forum and it seems related to "dependent variables" but I can not find where to get the "solid.mises"

then I think maybe I should define and variable as solid.mises. but it still failed.

Could you please tell me that what should I do, thank you very much.

0 Replies Last Post 31 mar 2016, 21:08 GMT-4
COMSOL Moderator

Hello chen xiaoxi

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