I was thinking about a flange connection for the tutorial covering bolt load, but ultimately I chose a simpler model (tutorial 34 if you haven't seen it yet). I can consider this for the future though.
No, but there was a study of wear in gears done in PrePoMax (there are built-in features for Archard’s wear modeling). When it comes to fracture, you could check quite new CalculiX functionalities for (mostly fatigue) crack propagation. They aren’t available in PrePoMax but you could activate them with proper keywords. Also, fatigue life prediction could be performed with Fatlab (another open-source tool).
Since CalculiX (unlike Abaqus) doesn't have special elements for idealisation of mechanisms, it's usually best to just model the joints with all their relevant components in contact (of course some components can be rigid bodies). However, it's also possible to use a combination of rigid body and equation constraints (or stiff springs) to model something like this. Equation constraints and point-to-point spring elements are not yet supported in PrePoMax though so one would have to add them manually via the Keyword Editor.
I must be doing something really wrong, I have a lot of instability problems trying to run my analysis in prepomax Could you try doing a bigger simulation in one of your future videos? Something like a deck or a table, with a plate and some bars as reinforcement.
If you have specific issues with your model, it's best to post on the PrePoMax forum. I'm active there. I plan a tutorial with a bigger assembly but it may take a while.
Thank you, Jakub! 🙂👍
Gracias!!
Hi sir, do you mind to make tutorial for the impact (stress check) of internal pressure and bolt load to piping flange? Thanks in advanced
I was thinking about a flange connection for the tutorial covering bolt load, but ultimately I chose a simpler model (tutorial 34 if you haven't seen it yet). I can consider this for the future though.
It is possible to check gear teeth base cracking in prepomax?
No, but there was a study of wear in gears done in PrePoMax (there are built-in features for Archard’s wear modeling). When it comes to fracture, you could check quite new CalculiX functionalities for (mostly fatigue) crack propagation. They aren’t available in PrePoMax but you could activate them with proper keywords. Also, fatigue life prediction could be performed with Fatlab (another open-source tool).
Is this possible to somehow represent a revolute joint in PrePoMax?
Since CalculiX (unlike Abaqus) doesn't have special elements for idealisation of mechanisms, it's usually best to just model the joints with all their relevant components in contact (of course some components can be rigid bodies). However, it's also possible to use a combination of rigid body and equation constraints (or stiff springs) to model something like this. Equation constraints and point-to-point spring elements are not yet supported in PrePoMax though so one would have to add them manually via the Keyword Editor.
I must be doing something really wrong, I have a lot of instability problems trying to run my analysis in prepomax
Could you try doing a bigger simulation in one of your future videos? Something like a deck or a table, with a plate and some bars as reinforcement.
If you have specific issues with your model, it's best to post on the PrePoMax forum. I'm active there.
I plan a tutorial with a bigger assembly but it may take a while.
Is it possible to perform topology optimization in PrePoMax?
No, but you could try the FreeCAD add-on BESO, for example.