Model conduction across a card edge guide

You can easily model conduction across a card edge guide without modeling the geometry or mesh of the guide.

A card guide is the solid piece where PCBs are clamped onto the wall.

1. When you define the Thermal Coupling simulation object, select the edge of 2D card mesh as primary elements.

2. Select the face of the wall as secondary elements.

3. Select Edge Contact from the Type list.

4. In the Conductance per Length box, specify the conductance per unit length (CL). To account for conduction in an edge guide with a rectangular section of width b and a thickness t, the Conductance per Length is CL = kguide (b/t).

The resulting conductance is G = CL Ledge.

Other effects, like contact resistances, may be accounted for by simply adding them in series to obtain an effective Conductance per Length value:

(1/ CLeq) ≈ (1/ CL1) + (1/ CL2) + (1/ CL3)

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Model conduction across a card edge guide, Simcenter 3D 2021.1 Series

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