The custom heatsink in question had no empircal data behind it, it was brand new. The company was worried about the heatload from the CPU expanding the bond between the HS and the CPU beyond the breaking point.
We performed a simple CFD analysis on the heatsink CAD model and bounced the results w/heat transfer results into Mechanica to find the max VonMisses stress due to thermal expansion. Optimized in one day - fixed issues.
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