![Matej Borovinšek](/img/default-banner.jpg)
- Видео 36
- Просмотров 278 380
Matej Borovinšek
Добавлен 9 фев 2011
PrePoMax & CalculiX - Split mesh
A demonstration of the PrePoMax feature to split a volume mesh into a coincident two-region mesh using a surface. This feature is extremely useful when working with geometry models saved in a .stl file format (scan reconstructions, implicit surfaces) where the CAD models do not exist.
Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
Просмотров: 787
Видео
PrePoMax & CalculiX - Thicken shell mesh
Просмотров 9378 месяцев назад
A demonstration of preparing solid multi-layered meshes from shell geometries or from shell meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Revolved meshes
Просмотров 1,1 тыс.10 месяцев назад
A demonstration of preparing revolved meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Extruded meshes
Просмотров 1,1 тыс.10 месяцев назад
A demonstration of preparing extruded meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Transfinite volume meshes
Просмотров 2,1 тыс.10 месяцев назад
A demonstration of preparing transfinite/mapped volume meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Transfinite shell meshes
Просмотров 1,1 тыс.10 месяцев назад
A demonstration of preparing transfinite/mapped shell meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Introduction to advanced meshing
Просмотров 2,5 тыс.10 месяцев назад
An explanation of advanced meshing features built into PrePoMax pre and post-processor for the CalculiX FEM solver. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Hydrostatic pressure
Просмотров 2,6 тыс.2 года назад
A demonstration of the hydrostatic pressure load application using the PrePoMax pre and post-processor for the CalculiX FEM solver. A simple example of a water tank analysis loaded with an internal hydrostatic pressure due to the water inside the tank is presented. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Wear analysis
Просмотров 7 тыс.2 года назад
A demonstration of the wear analysis performed using the PrePoMax pre and post-processor for the CalculiX FEM solver. A simple example of an oscillating pin on a plate is used to show the new PrePoMax capability. The wear analysis adds a new analysis type to PrePoMax solution possibilities by running a single cycle analysis multiple times while updating the mesh due to the computed wear. Downlo...
PrePoMax & CalculiX - Axisymmetry
Просмотров 2,6 тыс.2 года назад
A demonstration of the 2D capabilities of the PrePoMax pre and post-processor for the CalculiX FEM solver. A simple axisymmetric analysis of a pipe reducer is shown. For 2D analysis, the geometry must be created in the x-y plane (z = 0) and for the axisymmetric models, the symmetry axis is the global y-axis. Download link and installation instructions for PrePoMax: prepomax.fs.um.si/
PrePoMax & CalculiX - Coupled thermo-mechanical analysis
Просмотров 6 тыс.3 года назад
The new PrePoMax version v1.1.0 now supports the preparation, execution and visualization of thermal and thermo-mechanical analyses. The video demonstrates an evaluation of an engine piston subjected to thermal and mechanical loads. Download link and installation instructions: prepomax.fs.um.si/
PrePoMax & CalculiX - Submodel
Просмотров 5 тыс.3 года назад
Using sub-modelling it is possible to analyze in greater detail only a part of the whole structure. In this video, an example of how to prepare the global model and sub-model using PrePoMax pre and post-processor for CalculiX FEM solver is shown. Download link and installation instructions for PrePoMax: lace.fs.uni-mb.si/wordpress/borovinsek/?page_id=41
PrePoMax & CalculiX - Shell features
Просмотров 10 тыс.3 года назад
A new version of the free PrePoMax pre and post-processor for the CalculiX FEM solver adds the possibility to create shell compound parts, to display and flip shell face orientations and to split faces with internal edges.
PrePoMax & CalculiX - A Preview of Shell Fuctionallity
Просмотров 8 тыс.3 года назад
A new version of the free PrePoMax pre and post-processor for the CalculiX FEM solver will offer a full set of features for performing a shell based finite element analysis. Download link and installation instructions for PrePoMax: lace.fs.uni-mb.si/wordpress/borovinsek/?page_id=41
PrePoMax & CalculiX - Advisor, Units and Transformations
Просмотров 3,9 тыс.4 года назад
A demonstration of the user's Advisor inside the PrePoMax pre and post-processor for the CalculiX FEM solver. All versions from the version 0.8.0 on are unit aware. That means that all physical quantities can be entered in the selected unit system or using any other common appropriate unit and are automatically converted to the selected unit system. Download link and installation instructions f...
PrePoMax & CalculiX - Pre-tension - Bolt
Просмотров 9 тыс.4 года назад
PrePoMax & CalculiX - Pre-tension - Bolt
PrePoMax & CalculiX - Post-processing of the two-cylinder piston engine
Просмотров 6 тыс.5 лет назад
PrePoMax & CalculiX - Post-processing of the two-cylinder piston engine
PrePoMax & CalculiX - CAD geometry import
Просмотров 5 тыс.5 лет назад
PrePoMax & CalculiX - CAD geometry import
PrePoMax & CalculiX - Material Library
Просмотров 2,6 тыс.6 лет назад
PrePoMax & CalculiX - Material Library
PrePoMax & CalculiX - Animating results
Просмотров 3,8 тыс.6 лет назад
PrePoMax & CalculiX - Animating results
PrePoMax & CalculiX - Remeshing/Using different geometry
Просмотров 5 тыс.6 лет назад
PrePoMax & CalculiX - Remeshing/Using different geometry
PrePoMax & CalculiX - Boundary Condition & Load Symbols
Просмотров 6 тыс.6 лет назад
PrePoMax & CalculiX - Boundary Condition & Load Symbols
PrePoMax & CalculiX - Edit CalculiX Keywords: Contact
Просмотров 9 тыс.7 лет назад
PrePoMax & CalculiX - Edit CalculiX Keywords: Contact
PrePoMax & CalculiX - Edit CalculiX Keywords: Plasticity
Просмотров 10 тыс.7 лет назад
PrePoMax & CalculiX - Edit CalculiX Keywords: Plasticity
PrePoMax & CalculiX - Rigid Constraint
Просмотров 8 тыс.7 лет назад
PrePoMax & CalculiX - Rigid Constraint
What about johnson-cook's model?
Johnson-Cook and Mohr-Coulomb material models are implemented in the solver CalculiX but not jet in the PrePoMax. In PrePoMax, they can be added by the keywords editor.
@@MatejBorovinsek nah... there are not. there is just and only coulomb-mohr material model ...
I think it should be under *Plastic keyword Hardening = Johnson Cook.
@@MatejBorovinsek Do we talk about the same thing...? ruclips.net/video/-XNzntSxGmo/видео.htmlsi=e5Bshu_tAO8y1iFR
@@MatejBorovinsek ruclips.net/video/awpkDOtH6V4/видео.htmlsi=x9T3KgMX40tcrr4g
is it frictionless contact? What about friction coeficient? (0.7 for steel-steel dry surface in case od dynamic friction) ??
In this case friction is ignored. However, it can be easily added in the contact settings.
@@MatejBorovinsek Yeah i know it but... May I ask U about displacement of any reference point for that analyze and comparison with drawings?
There are amny of tutorials on the Internet that are not reliable... I guess you know what I mean...
I'm not talking only about the way of analyse (sometimes something can be simplified) but also about the results... not colours but about numbers in outputs...
I've been learning and using Ansys and Rfem for a long time... they are so much trustable about results. i'd like to say the same about PrePoMax
Thank you for this tutorial. Very good information.
Brilliant tutorial. I had only one confusion. How can we split the face of a complicated geometry ? I tried the split face function of pre pro max. it only works in certain cases when a nearby splitting vertices are there.
The split face in PrePoMax is only meant for very easy tasks. In case a more complicated geometry is used, the CAD system should be used.
@@MatejBorovinsek thank you for the information. Any suggestions about this software? Can FreeCad do it?
I use SolidWorks but FreeCad can also do it.
@@MatejBorovinsek thank you. My problem is solved
Hi, thanks for this, it’s very impressive. I have a question. When I export out as stl to import in blender, it will triangulate the mesh. Is there a way to maintain the quad when exporting the model?
No, this is not possible. The .stl format only supports triangles.
@@MatejBorovinsek I see. Will there be other file types export options like obj or fbx in the future for this software development?
I was thinkig of adding support for .obj files in the past but now there is no plan to support it. And our forum is a much better place for such discussions.
@@MatejBorovinsek understandable, will post the request in the forum then. Thanks.
It is amazing
Thank you.
@@MatejBorovinsek thank you too. I love the software a lot. It is pretty cute 😱
Really nice
that is god tier hardcore engineering. how could someone really good in software engineer and structure analysis.
A lot has improved in recent years.
Very interesting. How do you split the part in the first place ? In freecad? Thanks
I am using Solidworks but FreeCad also works.
hi. Great video。 Thank you. I want to know Is there any way to export stress fields from Prepomax to a .csv file. Something with the node data (x,y,z location) and the field value at the node.I add the keyword(example:*El print, ELSET=Element_Set-1 COORD, S ).But It doesn't run.
Please use our forum for specific questions: prepomax.discourse.group/. However, in general, it is not possible to export data from PrePoMax directly. You can use the .dat file produced by the CalculiX FEM solver to get such results, but the file format can not be changed.
@@MatejBorovinsek ok,I got it .Thank you very match.
This lecture is very perfect sir
So weldon sir
This tutorial is very great sir
This lecture is very nice sir
Thank you Matej. Congratulation. God works.
Amazing work!
good job
Very happy to see new videos. Thanks.
Prepomax is impressive, congratulations. I'm very excited to use it. I am obtaining excellent results in non-linear simulations on top load bottles.
Thank you, I am very happy you like it. If you have any ideas how to improve it please join out forum.
I'm from Brazil, your work is wonderful. I use PrePoMax & CalculiX to simulate top load bottle. Thank you very much.
How to prepare the simulation of an anti roll bar that rotates around its bushings mounts?
For a details answer, please use our forum. But rotational support can be achieved using a reference point in combination with a rigid connection.
Hello. Great job, Thank you. I have a question for you. As you may know, in Abaqus software we can select the type of a part, for example, it could be a deformable or a discrete rigid. I want to know how I can define a part as discrete rigid in this software. Also, I am doing a compaction simulation via this software. The punch doesn't move downward when I assign a displacement to the reference point of the punch, but it moves once a displacement is defined on the top surface of the punch. Could you please tell me how I can define a discrete rigid part? and how can I assign a displacement to the RP?
You can add a rigid body using Constraints. For a more detailed answer please use our forum.
@@MatejBorovinsek Thank you so much for your reply. Indeed, I signed in for it, but my account has not been accepted yet.
Many thanks for your great and invaluable work.
Thank for the tutorial I will try this
Could you please tell me the difference between coupled thermo-mechanical analysis and uncoupled thermo-mechanical analysis?
Please use our forum for longer conversations. PrePoMax uses CalculiX as a solver and you can find all about CalculiX-specific questions it in its manual: www.dhondt.de/ccx_2.21.pdf
Hello, Thank you very much for this beautiful work. I have a problem. I get this warning '*WARNING in gentiedmpc: no tied MPC generated for node 20860 no opposite master face found; in-face tolerance: 0.12505815862444464' What could be the reason? Thanks a lot!
It would be much easier to post this question on our forum.
@@MatejBorovinsek I am waiting to accept my account, I will write, thank you so much.
Thank you very much!
Nice, great improvement.
Excellent implementation, hopefully in the future some python console interaction/script manipulation.
What is the difference between this method and surface mesh extrusion?
The extrusion method only works in a single normal direction. Here the extrude direction changes based on the geometry.
It is a dream to have similar interface for OpenFOAM :)
There is one already (just not that user-friendly but still worth giving a try) - additional CfdOF module in FreeCAD.
Thank you @Matej for your endless dedication and perseverance to continually improve PrePoMax. It is certainly much appreciated by many who cannot afford the ridiculous prices of commercial software. I am sure that the use of PrePoMax will certainly continue growing exponentially in the engineering community, as it becomes better known and more widespread.
I've been having a better time using PrePoMax than some of MSC products... thanks for making these videos! I am excited to see the continual development with prepomax. Wish I could use it in Linux.
😂 patran what?
@@user-lq3cr7yg8o I had high hopes for Apex but they keep updating it without proper documentation and it is terribly slow. I think they wrote the entire program in python...
Thanks for doing these videos, they really help.
It's very interesting. Can I use Prepomax to simulate temperature rise due to wear?
No, the temperature generation due to friction cannot be computed.
I really like the clear and straightforward workflow of this excellent tool! Thank you very much for this gift!! One question: How do you mesh 360-degree geometry when there is no cross-section to select?
Thank you. Unfortunately, currently 360 degree revolve is not possible.
You could try using 2 meshed parts revolved by 180 degrees. They could be connected with tie constraints (introducing potential spurious stress concentrations but it may still be worth giving a try).
I just want to express my appreciation - well done! Please keep pushing forward with the improvement of this software. It's truly impressive!!!!
Could you please let us know which software was used to create the solids with multiple parts.
I used SolidWorks but other CAD software has the same capabilities.
Congratulations on the successful implementation of hex elements. This is a significant enhancement to an exceptionally intuitive and user-friendly workflow.
Thank you.
it's a great and amazing for an early stage of implementation. The workflow is easy to understand, also try to bring all the functionality of Gmsh mesher.
New videos!! ❤️❤️🎄🎉🎊🙂
Great work! Thank you Matej! 🙂👍❤️
Excellent work Matej. Thank you. The FEM community in general need to know about PreProMax :)
This is so impressive Matej. I don't know how you keep improving what is already such an excellent open source pre-post processor; but thank you so much. Incorporating Gmsh into PrePoMax is again on another level, especially the capability to mesh with hex elements
Thank you Naldo. I am happy you like it.
Świetne efekty ❤
Brawo. Program powoli się rozwija, ale ma bardzo duże możliwości. 😀
Great Job.
Thank you.
Very interesting project, congratulations. In the future, the ability to manage OpenFoam and Open Radioss would revolutionize the user experience for engineers who use open source software. I would focus less on post processing, because from this point of view, Paraview is a very valid tool.
Currently, there are so many other things that need to be added that support for other solvers is outside the first plan.
Congratulations Matej, you're doing a great job. You make Calculix accessible to engineers. I wish someone would do the same for OpenFoam.
Thank you.
There is one that exists that is the closest to what you're looking for, look up BARAM.
how can we get the CalculiX Keywords file?
You can use File -> Export.