Contact Resistance conversion from electrical to mechanical

[ME7]

Hi Folks,

I am interested in knowing if anyone has experience converting electrical resistance (ohms/area) to thermal conductance (Power/(area*K)) or (W/m^2K). I need to this mechanical world for performing thermal simulations and I have found a chart on contact pressure as function of electrical resistance.

Thank you any and all feedback,

Regards

 

[IRstuff]

As a general rule, there isn't one.

TTFN
faq731-376

 

[electricpete]

I agree.

A comment on terminology.

Since contact resistance is not proportional to area, electrical contact resistance chracteristics probably wouldn’t be characterized as “ohms per area”.

If we assume contact resistance is inversely proportional to area, then “Siemens per area” might be a more descriptive term.


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(2B)+(2B)' ?

 

[ME7]

Thank you for the sanity check!!

ME7

 

[jharris3]

Try these out!

Modeling, Designing, Fabricating, and Testing of
Channel Panel Flat Plate Heat Pipes - by James Harris (ME!!!!)

[20] Bahrami, M., Yovanovich, M., and Marotta, E., 2006, Thermal Joint Resistance
of Polymer-Metal Rough Interfaces, ASME J. of Electronic Packaging, 128(3),
pp 23-29.
[21] Fuller, J., and Marotta, E., 2001, Thermal Contact Conductance of
Metal/Polymer Joints: An Analytical and Experimental Investigation, J. Thermophys.
Heat Transfer, 15, pp. 228238.

 

[jharris3]

FYI - read carefully! those equations are sensitive to a few things!