WUFI

Hello.

Sometimes, when I choose a material from the database, it gives me an option to assign a thickness. For example, the EPS (0.04 W/mK - 30kg/m3) from the Fraunofer database gives me the following possible thickness [m]: 0.01 / 0.06 / 0.08 / 0.1 / 0.16

My question is: how does this choice affect the calculation? I tried to choose different options for this particular case, but the material properties (the Diff. Resistance factor particularly) don't seem to change with thickness.

Can I just choose an arbitrary thickness then?

Thanks!
Manexi

manexi wrote:[...]how does this choice affect the calculation? I tried to choose different options for this particular case, but the material properties (the Diff. Resistance factor particularly) don't seem to change with thickness.

Can I just choose an arbitrary thickness then?

Hi Manexi,

yes, you can choose any thickness, as appropriate for the component you are simulating. The material data are always the same; the list with predefined thicknesses is just meant to assist you by proposing a few standard thicknesses. If you want a certain thickness which is not in the list, just don't allow overwriting the thickness you entered, or edit the thickness afterwards to reflect your wishes.

The calculation is only affected to the extent that different thicknesses - for always the same material properties - affect the result.

If the material comes in slabs of different thicknesses and those slabs actually do have slightly different material properties because of the slightly different manufacturing processes, you have to take this into account separately - it is not covered by the choose-a-thickness feature.

Regards,
Thomas