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Polyimide

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proEdj

proEdj

Mechanical
Dec 6, 2004
25
I have seen quite a wide range of Elastic Modulus values for polyimide pwb boards. Does anyone know of a reliable source that I can utilize to do a vibration analysis on a printed circuit board.

Thanks
 
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PROEDJ: What is that you want to do? By vibration analysis do you mean a test like MIL-STD 810 or a resonance search or something else?

Regards
Dave
 
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I was hoping to do a Pro-Mechanica or Ansys FEA analysis to determine the mode shapes and resonant frequencies of a board. I will also back this up with a hand calculation of the natural frequency. Both of these task require the Elastic Modulus, poisson's ratio, and density. I would actually prefer to have the properties of fully constructed printed circuit board.
 
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Why not measure it? If the variances are that high, only a measurement will nail it down.

TTFN



 
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