Sequentially coupled thermal-stress analysis
Sequentially coupled thermal-stress analysis
(OP)
I am trying to run sequentially coupled thermal stress analysis. I run the uncoupled heat transfer analysis first. Then I copy the file and use the same mesh in a mechanical analysis where I apply predefined temperature field, delete the thermal step from before and create a new mechanical step with boundary conditions. The problem occurs when I try to run the model. I keep on getting an error saying that it can not find the .odb file. When I follow the file path the file is in the right place. Has anyone seen this before?
Thanks
Thanks





RE: Sequentially coupled thermal-stress analysis
corus
RE: Sequentially coupled thermal-stress analysis
Thanks
RE: Sequentially coupled thermal-stress analysis
Using the same model that I used for the heat transfer analysis, I delete the heat transfer step and create a static, general step with the same time increments as the heat transfer model.
I apply the appropriate load and boundary conditions.
For the predefined field, I selected the temperature distribution "from results or output database file". Then I selected the .odb file from the heat transfer analysis. There are other options for Begin Step, Begin increment, End step, End Increment. I left all of these blank because I wasn't sure what to put there.
For the mesh, I keep the same mesh that was used in the heat transfer analysis; however, the element was changed to the one that you used in your report.
I run the analysis using a different job than what was used in the heat transfer analysis and I get an error that says this:
*TEMPERATURE MAY NOT BE USED WITH ELEMENTS THAT POSSESS TEMPERATURE DEGREES OF FREEDOM. USE *BOUNDARY TO PRESCRIBE BOUNDARY CONDITIONS ON TEMPERATURE
I've tried to use temperature boundary conditions and I still get the same error message.
Did you run across anything similar to this when you were developing your model? I really appreciate your help!!
RE: Sequentially coupled thermal-stress analysis
Tata