Refer the material properties in PDE interfaces

Hi all,

I have defined materials and their properties from the built-in library already. While working on the coefficients of the PDE interfaces ( for example, Coefficient Form PDEs), can I just use those predefined material properties? If yes, how do I know their variables names?

Specifically, I have defined concrete in the Material section. When working on coefficient form PED, I want to use the concrete density times concrete specific heat, which are already defined in Materials, as the damping coefficient. Should I use something like Materials.rho*Materials.Cp? What variable names should I use?

Thanks for any suggestions.

Best,

1 Reply Last Post 2017年6月19日 GMT-0400上午10:24
Jeff Hiller COMSOL Employee
Posted: 4 months ago 2017年6月19日 GMT-0400上午10:24
Hi Fengtao,
This old thread addresses your question, I believe:
www.comsol.com/community/forums/general/thread/5315
Best,
Jeff
Hi Fengtao, This old thread addresses your question, I believe: https://www.comsol.com/community/forums/general/thread/5315 Best, Jeff

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