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Problem with Constraint Group and Load Cases
Posted 2014年9月5日 GMT-4 03:46 Heat Transfer & Phase Change, Structural Mechanics Version 4.4 0 Replies
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I have made a simple model with the thermal stress interface. In the setup I have a beam that has a fixed temperature on one end and two different temperatures on the opposite face at the other end of the beam.
The different temperature constraints has been assign into three different constraints groups.
Under Study Extensions in the Study node I have defined two load cases that uses the different temperature constraints.
The results show no difference in temperature between the to load cases. It seems that COMSOL is using the temperature constraint at the bottom of the list in the Heat Transfer in Solids node, for all load cases.
I have also added two different boundary loads for the same face under the Solid Mechanics node. They are assign to different load groups and applied separately in the to load cases. This is just to show that for load groups everything works well.
Why doesn't the Constraint Group work together with load cases? Seems strange as the Load Group work fine using the exact same approach. Is there maybe a workaround?
In my project i have a lot of load cases with different temperature constraints i need solutions for.
Thanks
Anders
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Hello Anders Brattli
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