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Thermal Expansion 2D don't agree with analitical value of 3D
Posted 2018年1月12日 GMT-0500下午8:59 Mechanical, Results & Visualization, Structural Mechanics & Thermal Stresses Version 5.3a 2 Replies
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I've been using the 2D Thermal Expansion Module to verify some results. I've built a copper bar with 300 x 10x3.5 (The 3.5was put on thikness of solid mechanic module). It shows that the displacement was 5.2 when subjected to an enhance of 800K. The theoric value gives . This is a diference abaut 30%, even thoug it is a very simply simulation. But if I simulate the same values for a 3D sistem, the result agree with theory. Why is there this difference? Is it possible that I've been using the of displacement measurement wrongly?
Thanks and best regards