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Problem in thermal stress modelling

Posted 28 févr. 2013, 05:25 UTC−5 Structural Mechanics Version 4.0a 0 Replies

Sagar Zaware
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Sir,

I am working on thermal stress modelling on EDM process using COMSOL 4.0a. I am using heat flux as a input.

At some places I am getting negative Surface Temperature which gives me wrong results of stresses. I have tried in many ways to solve it. When I apply very fine meshing it gives errors. And I also found that as I change mesh size negative temperature also changes.

Is this problem related to mesh size only or any thing other???

Thank You

Sagar
0 Replies Last Post 28 févr. 2013, 05:25 UTC−5
COMSOL Moderator

Hello Sagar Zaware

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