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Link two models PDE and Thermal Stress
Posted Dec 4, 2014, 8:16 a.m. EST Studies & Solvers Version 4.4 2 Replies
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Hi there,
I am new in COMSOL, using the version 4.4.
I am using two model. One is "coefficient of PDE(c)" and other is "thermal stress model". Both are time dependent. The variables I am getting from PDE are two temperatures.
I know, if I use thermal stress model I have to use a heat source. But want I don't want that, instead I want one of the temperature that i am getting form PDE model will reflect on Stress model. And the temperature from PDE model is the reason for the thermal stress.
I will be really grateful to you if you give me a solution for that..
Thanks a lot
Pinaki
I am new in COMSOL, using the version 4.4.
I am using two model. One is "coefficient of PDE(c)" and other is "thermal stress model". Both are time dependent. The variables I am getting from PDE are two temperatures.
I know, if I use thermal stress model I have to use a heat source. But want I don't want that, instead I want one of the temperature that i am getting form PDE model will reflect on Stress model. And the temperature from PDE model is the reason for the thermal stress.
I will be really grateful to you if you give me a solution for that..
Thanks a lot
Pinaki
2 Replies Last Post Dec 5, 2014, 11:54 a.m. EST
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Posted:
10 years ago
Pinaki,
The Thermal Stress interface is a multiphysics interface solving for both temperature and displacement. If you want to use a PDE interface to solve for temperature, then you should use the Solid Mechanics interface instead of the Thermal Stress interface. In the Solid Mechanics interface, you can add thermal expansion by right-clicking on the material model node (e.g. Linear Elastic Material) and selecting "Thermal Expansion" from the menu. On the new Thermal Expansion sub-node, you can enter your temperature variable in the Model Inputs section.
--
Luke Gritter
AltaSim Technologies
The Thermal Stress interface is a multiphysics interface solving for both temperature and displacement. If you want to use a PDE interface to solve for temperature, then you should use the Solid Mechanics interface instead of the Thermal Stress interface. In the Solid Mechanics interface, you can add thermal expansion by right-clicking on the material model node (e.g. Linear Elastic Material) and selecting "Thermal Expansion" from the menu. On the new Thermal Expansion sub-node, you can enter your temperature variable in the Model Inputs section.
--
Luke Gritter
AltaSim Technologies
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Posted:
10 years ago
Thanks a lot for the help Luke..
My model is working perfect.. :)
My model is working perfect.. :)