Introduction

A study of the thermal and mechanical performance of a heatsink. The analysis is done to find out the thermal stresses produced when the heatsink is constrained and under a thermal load.

PROBLEM STATEMENT

We have a heat sink with a temperature load of 230 °C on its bottom surface. The heat sink is also constrained in all 6 degrees on its sides. We need to find out the thermal stresses induced in the heat sink due to the thermal load.

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PROCEDURE

For this purpose we create a model of the heat sink in 3D space and create a tetrahedral mesh on it using HyperMesh meshing tool. constraints and heat load are applied to the model and an FEA multi Physics analysis is performed on the heat sink. The results are published in post.

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RESULTS

The following results are obtained from the analysis:

• The stresses produced in the heat sink are well below our allowed stress limit and hence the heatsink did not fail under the given loading conditions.
• The temperature of the heatsink is 230 degree celsius on the bottom surface and quickly decays to 20 degree celsius (ambient temperature) as we go towards the upper part of the heatsink. Hence the heatsink is working as intended.