Dear all,
I am trying to model and analyze thermal stress in a solid block sandwiched inside a Steel-press. The model is attached. As I used to work on CFD and I am fairly new to the FEA, there is a big chance that I made mistakes on boundary condition settings.
So I designed the geometry, and as can be seen a Copper object (block) is pressed between a two Steel blocks. At this point, I kept the boundary force very small (200 N) applied only over the upper steel-part, while I kept the lower steel-part to be fixed. the Copper block must be heated up to 800 degree F, and then will be inserted into the press steel-parts, while they are also preheated to 460 degree F, and I took care of these settings in the inital conditions. The whole system is thermally isolated, and only the Copper block faces convective cooling.
This process must take long for 60s. Unfortunately, the model is incapable for converging for time-dependent solver! and as I turned the solver into stationary (which is not the case) as can be seen from the results of "Study 1" in the attached model, the Copper block penetrates into the lower steel-part of the press. And also, the tempreture distribution as a result of Heat transfer in the solids does not seem to be correct.
Could you please take a look into the model, and help me to set it up correctly?
Regards,
Shawn
I am trying to model and analyze thermal stress in a solid block sandwiched inside a Steel-press. The model is attached. As I used to work on CFD and I am fairly new to the FEA, there is a big chance that I made mistakes on boundary condition settings.
So I designed the geometry, and as can be seen a Copper object (block) is pressed between a two Steel blocks. At this point, I kept the boundary force very small (200 N) applied only over the upper steel-part, while I kept the lower steel-part to be fixed. the Copper block must be heated up to 800 degree F, and then will be inserted into the press steel-parts, while they are also preheated to 460 degree F, and I took care of these settings in the inital conditions. The whole system is thermally isolated, and only the Copper block faces convective cooling.
This process must take long for 60s. Unfortunately, the model is incapable for converging for time-dependent solver! and as I turned the solver into stationary (which is not the case) as can be seen from the results of "Study 1" in the attached model, the Copper block penetrates into the lower steel-part of the press. And also, the tempreture distribution as a result of Heat transfer in the solids does not seem to be correct.
Could you please take a look into the model, and help me to set it up correctly?
Regards,
Shawn