Prepomax review Navigation Menu News. Main problem is for me with size of model and Oct 10, 2024 · PrePoMax Models repository by Matej Borovinšek on GitLab. Download link and installation instruction Contribute to JunTatsuno/PrePoMax development by creating an account on GitHub. All features Hello everyone, I hope you’re all doing fine! After some time away from structural analysis, I returned to PrePoMax and gladly found amazing new features in which the local coordinate system shines the most for me. exe; Prools CaculiX version must be run in a compatibility mode (for unknown reasons) which is activated by opening the analysis properties: Double click on the analysis name → Compatibility mode: On; Jan 26, 2024 · thank you for your rapid reply -I was aware of the admin issues in that folder and had been running the program as an administrator. Any advise ? Thanks. Code Review. NET framework 4. I guess you would May 16, 2024 · I imported the step file into PrePoMax and got a tetrahedral mesh that looks pretty good. , I use the compound part) Bolts shear contact not working correctly (see his first post). material-definition. I get this a lot when I have pin to compute. csv or . I wanted to do a mesh refinement early Compiling PrePoMax only creates some of its subfolders and default settings are prepared. About PrePoMax PrePoMax is a pre and post processor for the Calculix solver. Continue reading Flattening tube in PrePoMax. The PrePoMax project started some 6 years ago with the intention to provide a user friendly graphical interface for one of the open-source FEM codes. The sweep meshing was tested on a couple of examples. diameter. 55. I couldn’t find such result option in prepomax. You switched accounts on another tab or window. Aug 28, 2022 · The stress distribution along the contact line varies slightly between the two methods, but the difference is not enough to be significant. PrePoMax. . Greetings team, If the number of cycles is kept at 15, cycle increment 3 and wear smoothings step 5, the simulation is converging. Adding that simple jointing feature would almost completely placate us people who do coarse aerostructures, as we can always go into the deck and easily convert those rigids into beams with basic find-replace rather than writing scripts to do it PrePoMax contains many features needed to prepare, solve and post-process different FEM models. igs” file, which was created using Autocad by drawing the basic geometry of two H-profile Jul 23, 2022 · above picture was taken form official examples pret3. Jun 13, 2024 · Try in PrePoMax 2. I haven’t run an explicit model in ages so I need to review the details about the setup. It is also helpful to read reviews and seek recommendations from other users who have experience with the software. Feb 5, 2023 · PrePoMax is a simple and intuitive use pre- and post-processor for the Calculix solver. An open-source Netgen library performs the meshing. This process requires using cgx to export points and NEST as . Hopefully, he will find some time to resolve at least a few of them. Analyze/review source code Improving existing source code Adding needed features Develop new functions. Then the facesheet is fixed at the bottom and a pin is put through the hole. It splits the geometry into source, side, and target surfaces. 0, analysis is dynamic implicit (I couldn’t get explicit Weld simulation model use CAB methode. The forum posts also seem to be growing by the day. dat file reader bug fixes And the following user features: coordinate systems are now highlighted when selected during the creation of BCs and loads history (for regeneration) was updated to include commands for analysis and commands for postprocessing; Oct 24, 2024 · Dear All, I am currently on PrePoMax v2. 3 KB. 34 1242×724 111 KB. An overview of the most important features is listed below. The mesh can also be generated with no setup items - it will use default settings. 20\ccx. Optima September 12, 2023, 8:36pm 1. 1. A colleague tested it in Wine on Linux, and it works there as well. Inputs: Fastener location using reference points or XYZ coordinates and fastener data. When I use the STP format, the program imports only one of the objects. Please confirm if I have set them up correctly. I am using version v. For example see convergence results from my current run convergence. The problem is very simple, but the model is very complex, with many bad surfaces, and it is difficult to directly mesh. Should I be setting up Surface Interaction (with Thanks to the @FEAnalyst who prepared the new PrePoMax documentation, it is now available online at: https://prepomax. PrePoMax Heat thermal analysis. However, I have a problem with importing the 3D geometry. I also assigned it material properties that I'm pretty sure are accurate. CGJ June 13, 2024, 12:49pm 29. pdf), Text File (. Navigation Menu. When setting up the new laptop I installed the . I am also surprised that settings in these files override the settings PrePoMax sets using: Gmsh. I need help setting up analysis and getting the results. What solver is suitable for static analysis and contact analysis, and non-linear analysis? Default Hi I have a question regarding simulating rolling of rubber. News. When the mesh is successfully created, proceed to the FE Model part of the model tree. Adding combinations of optimization techniques is not problem. 6 dev. For Prepomax, it might be an option to use the dat file values (with assumed locations of the IPs. Downloads. Do you mean how to connect them so that heat can flow between them ? . It seems it will take longer to set up our University network. Contribute to JunTatsuno/PrePoMax development by creating an account on GitHub. And the following user features: the number of edges and vertices was added to the surface query tool/annotation Downlo The new version of PrePoMax contains the bug fix that prevented working with material libraries. 0 Hello everyone, I hope you’re all doing fine! After some time away from structural analysis, I returned to PrePoMax and gladly found amazing new features in which the local coordinate system shines the most for me. However, the mesh. Oct 9, 2024 · Since PrePoMax is geometry-based instead of mesh-based for modeling, I would suggest to make nodes of the mesh to lie exactly where the user wants the connection to be established, maybe GMSH has something useful in this regard. The problem is that if the mesh of the base surface contains a triangle where only one vertex of the triangle is on the revolve axis, this element gets revolved in a four-sided pyramid. may it would be useful feature when PrePoMax can generates automatically of beam element, dcoup3d, additional nodes and equations. 0) introduced support for axisymmetric models. Define Now I reused the full Hexaeder mesh (Hex20 & Wedge15 only) from Ansys in PrePoMax to make some comparisons. Dec 2, 2024 · Hello, I am trying to use the PREPOMAX program to calculate a 3D thermal bridge. 0, support for material names with @ was added in 2. how to create a thermal simulation of heat transfer between 2 components that are in contact. PrePoMax UMAT option in PrePoMax. txt file? Something with the node data (x,y,z location) and the Radeon, Zen3, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. Hi everyone, i got an issue performing an Steady State Dynamic step, mi case is a shell element, with a regular mesh, i’ve performed a modal analisys and later the SSD, i don’t find a response for my issue, solver brings me I often seem to wait a long time for an analysis, only for it to fail (with no clues as to why). The new version is indeed useful. Matej: I have fixed this can be review for both linear and quadratic element Video Tutorials. thanks. We are very keen if you can cover the below list of topics and any other Sep 27, 2024 · PrePoMax Bolt pretension model. The issues I am facing consist into the unability to select some random faces of step models when defining new surfaces or node sets. The new list view with mouse over selection integrated into version 2. Nov 22, 2022 · In an article with free FEM packages, I listed three programs worth looking into (link to article): Salome Meca, PrePoMax and Freecad Workbench FEM. 0: 253: February 1, 2022 A new developer/preview PrePoMax version v2. Nov 14, 2022 · Dear Matej, We are in the process of evalutng PM-SynRM. 4 and 1. This function wrongly identified 1E-9 and added a decimal separator at the end of the value. Bug Reports. Matej November 3, 2024, 9:35am 2. A category to state general questions, give opinions and discuss interesting ideas. Feb 14, 2023 · I am trying to simulate the how defects in glass impact the internal stress of the glass. inp. 0, I Apr 29, 2024 · Hello Community, I am new in PrePoMax but I have some experience with Inventor Nastran. 32 1246×653 89. fatmac January 26, 2024, 9:54pm 3. Manage code changes Discussions. I have mainly used it as a tool in my teaching. Dear PrePoMaxers, regarding bolt connections I have two questions. I understand now. Problem in Surfaces assignment. Is it Jan 24, 2024 · In this version: the thicken shell feature now works with normals computed from geometry; if the part has no geometry, the normals are computed from the mesh the thicken shell feature now retains model edges (feature Jun 13, 2024 · Try in PrePoMax 2. Hi all, I’ve noticed that my system monitor shows only one core being utilized out of my 4-core CPU. Mainly in the area of machine design. Please refer to images below: Displacement - Max displacement is observed in both model at same node with Simple example and CalculiX keywords for mixed composite modeling (laminated composite) with shell elements and orthotropic material. 0: 572: February 1, 2022 LE6 Skew plate under normal pressure. 3: 62: December 23, 2024 Question on BDS. 1 thickness and 1. I don’t see much talk about solve speed these days. In the first one, amplitude option is selected to a certain amplitude defined. Contributions. [1] The original software was written for the Linux [2] operating system. FEAnalyst May 17, 2024, 9:52am 2. In CalculiX it’s defined based on tie constraint - additional parameter (cyclic symmetry) has to be added to it and then a new *Cyclic symmetry model keyword follows. Usually large deformations, contacts and plastic deformation I have a suggestion regarding some future versions of PrePoMax. You can PrePoMax. How can I configure PreProMax to fully utilize all my CPU cores? Additionally, does PreProMax support GPU processing for calculations? CalculiX is a free and open-source finite-element analysis application that uses an input format similar to Abaqus. For me though the one frustrating thing has been selection of surfaces in preparation (pre), and probing nodes/elements in post. xml file for a 3d domain. I am finding that some of the benchmarks I’m doing are super easy to configure. I am using Gmsh for 2D mesh generation, while PrePoMax generates 3D mesh. I have reviewed the inp files, and I believe they are set up correctly. I have a shape like a tophat, where the brim is pulled away from the top so to speak, in bending/shear. 6 Likes. PrePoMax Models repository by Matej Borovinšek on GitLab. It can be very useful for shafts, impellers and so on. Then copy all folders that are Nov 19, 2023 · Taking advantage of this already-created topic in compression-only, I would like to ask if this is an expected behavior or not. First, a Compression-only constraint must be defined: Then, in the step properties, the Nlgeom must be turned on (gap elements without the Nlgeom behave as spring elements, and such elements can be used for testing). stl geometry models added support for mesh optimization when using Gmsh mesher added support for Oct 30, 2023 · First, this was a limitation of PrePoMax since circular edges are needed in all vertices of the selected base surface. I’m using PPM v1. gerardoe97 October 17, 2024, 10:09am 1. 2 dev. After opening the results (if the non-linear analysis is successful), the In this review chapter, the current status of research work on the role of plastic deformation during manufacturing is illuminated. So it acctially wrote 1E-9. So the ones needed are: Hello, I have spent some time experimenting and refining my process for compound shell meshing and calculations after this post: There appears to be great inconsistency in the relation of PrePoMax and Calculix solver. 4 prevents some UI functionality. 0; Documentation PrePoMax allows you to mesh a solid or a shell-based geometry using linear and parabolic finite elements. 21 but there are still quite a few left. First of all, it’s my first time participating in this group. Dismiss alert Nov 4, 2024 · I mesh it outside but you can use both, extruded or revolve algorithms with Delaunay for quads inside Prepomax. Do I have to do something special to make sure results get saved?? Trevor October Nov 5, 2024 · Calculix has problems with this kind of geometry where there is contact between two cylindrical parts. i did not further review personally, but i think it will be shown as is. Dec 5, 2024 · The new version of PrePoMax contains bug fixes. May it be even more Jan 27, 2024 · I’m running static analysis and in order to find mesh size convergence I’m used to review the strain energy as a tool to find the results convergence. The layers fo the facesheet are - A real life experiment was done on the following facesheet and those were the results. Jan 9, 2024 · I would like to calculate the finite element stress of a 5MW wind turbine hub for a fatigue calculation in Fatlab and I came across PrePoMax. Thanks, Oren. The shells were imported as an “. An additional video playlist by Jakub Michalski is also published on Youtube. You can define it using the keyword editor in Is the accuracy of Calculix for static structural analysis of 3D geometries comparable to Ansys ? I am currently using Ansys in my organisation as a pre paid license. 1-manual - Free download as PDF File (. PrePoMax user experience is demonstrated in a video playlist published on Youtube. um. 0 11/18/24 08:20:25 Some items might not be loaded correctly. Until now, there was no other The new version implements suppression-only support using GAP elements. Based on the dat file, all the options you listed from ABAQUS would be available in the postprocessor. 0, JUNE 13, 2023 – Normal shell edge load – Gravity – Centrifugal load – Pre-tension – Concentrated flux – Surface flux – Body flux – Convective film – Radiation 3 Workflow, general options (a) Geometry tab of the model tree (b) FE Model tab of the model tree (c) Results tab of the model tree Figure 2: Three PrePoMax tabs In hi, i tried meshing of tube intersection with transfinite options, Straight and large tubes successfully generate hexahedral element, but two smaller tube is not. From version 2. Analysis types. I’m working on a model which hasn’t this kind of constraint (and also they were not created anytime during modeling), but in the input file, I see some references to compression-only keywords. thank you for your rapid reply -I was aware of the admin issues in that folder and had been running the program as an administrator. How to install the latest version of PrePoMax Aug 26, 2022 · It all depends on what you want to analyze but PrePoMax and CalculiX can be suitable for many scenarios, including the analyses performed in industry. I hope our guys will fix this problem soon. 4. Features. Last year I did some simple research in non-linear behavior using PrePoMax successfully. With it, the PrePoMax homepage is also down. However, I can only do part-wise analysis and it would be cool to be able to analyze larger assemblies or analyze using large deformations. 25/03/2022 25/03/2022; by Matej Borovinšek; A new release version of the PrePoMax contains the following FEM features: added support for tabular amplitude creation and its application in boundary conditions and loads; Maybe this could be added to prepomax as fourth optimization option (if possible): oo 911×314 17 KB. It also supports an import of the finite element mesh from a file. Oct 15, 2022 · Dear FEAnalyst, let me first thank you and Matej for the outstanding work you are doing: Prepomax is getting really a professional tool. screenshot. Amos November 27, 2024, 4:50am 1. CGJ June 23, 2024, 12:23pm 32. There are fillets down in the corners. The stated problem is that when simulating a structural part (counterweight for tractor) by means of a static analysis and applying the Good day all, I am encountering some difficulty setting up a contact (with friction) between a shaft which is free to rotate and translate within a bush. 2 Likes. The CalculiX was selected for this purpose due to its maturity and similarity of the input files with Abaqus. In today’s article I will describe the second of these. Option. But other function seems works proper and PPM 2. and my model is a circular bound surface with 0. zchlrnr November 3, 2024, 7:35pm 21. The ultimate Hi, In the version I’m currently using (v2. I have big issue with static analysis of assembly with contact. Oct 14, 2024 · Is there an explanation anywhere of what the various columns in the Convergence tab of the Monitor mean? STEP is obvious, and I’m pretty sure I understand INC (Time Increment # within that Step). Thanks. 6 dev version: A developer/preview PrePoMax version v2. e steel) is in heavy intention research since it’s last crucial steps to review and predict the strength capacity and failure modes of a part. 0 dev\Solver\ccx2. I also tried different formats via FreeCAD. The entire history can be deleted using the Clear button. Since now prepomax supports time harmonic analysis alongside multiple steps analysis, it seems to me that converting frd to vtk and getting advantage of the Sep 16, 2022 · strain based design (ductile fracture materials i. WIwat December 24, 2024, 6:14pm 1. results, dynamic. 6 has been released. Matej April 5, 2023, 5:26am 5. Unless the geometry is particulary nasty but it doesn’t seem to be the case here. And also applied a force on top of the mass. To try this new tool, I decided to create a simple “bolted” joint with some RBEs simulating the connection and tried using a local coordinate The implementation in prepomax seems to be the same as I was doing manually. Thank you. When I Oct 13, 2024 · Thanks for trick! I use AMD Radeon HD 7400 Series and looks like GPU render no very fit for me (i don’t how turn it on). 26: 1974: December 29, 2024 Welcome to Discourse. 11/18/24 08:20:25 Warning: The opened file is from an incompatible version: PrePoMax v2. AsuraEquation November 5, 2024, 1:25pm 30. The side surfaces must be 4-sided to be quad meshable while there is no limitation to source and side surfaces. FEAnalyst January 27, 2024, 10:53am 2. inp file, I only keep references to the points and NEST, along with content such as material properties, boundary conditions, forces, and outputs. Gunnar: What shows your step/increment bar? As I mentioned above it only shows 1,0 thru 1,8 no sign of step 2. Trevor January 5, 2024, 12:58pm 1. PrePoMax Adding new keywords and running the analysis. It seems that the permissions changed somehow. Froz September 27, 2024, 12:21pm 1. in my attempt I am OptiMax is a software package that allows the user to structure the design process, explore the design space and compute optimal designs according to specified constraints and objectives. 2. Jul 21, 2024 · A new developer/preview version of the PrePoMax contains the following FEM features: added support for exporting history outputs (Result → History Output → Export) added support for selection by geometry IDs added support for reference point creation based on geometry selection added support for coordinate system creation based on geometry selection Oct 6, 2024 · PrePoMax Slow to converge, or failing? General Questions. In general the contact interaction (hard) between surface is not acting in my model. 001 mm. nz 165. 3 sCPU Intel(R) Core(TM) i7-4720HQ CPU @ 2. Dynamic analyzes and hex meshing with GMSH. And in this file [sharik5. Joe December 12, 2024, 3:39pm 1. Then, I tried removing this constraint, and I got to another problem. igs” file, which was created using Autocad by drawing the basic geometry of two H-profile PrePoMax Issue Steady state Dynamic Step. I have been working on this for whole week and now I just don’t have more power to face this. A category for the PrePoMax news. Probably I can re-run the failed simulation from PrePoMax to generate the element set for review. – Ignore the red This post is referred to model in my previous post “Kinematic Coupling / Rigid Body with Moment load having higher magnitude” After successfully running the simulation, I made comparative study of results with abaqus and I have found following results. I wonder if the Python script can affect the computational time, compatibility with other SPCs or MPCs Hi, usually I am creating a more or less coarse 2nd or 1st order tetmesh with refinements depending on how much interessed I am in the part results. 4. May 3, 2024 · Gmsh shouldn’t generate elements with negative jacobian if Second order linear is enabled and it is by default in PrePoMax. I was using Umat Aug 31, 2024 · A new release version of the PrePoMax contains the following FEM features: improvement of the . With Aug 26, 2022 · As a main/only PrePoMax developer I am happy to hear that you like the GUI. Amplitude inputs and responses are below. Static linear analysis; Static nonlinear analysis with geometric, material and I’m using PrePoMax v2. Oct 11, 2024 · I’m a newcomer to PrePoMax and have a simple question about shells and membranes. I have a facesheet of glass epoxy with a hole in the middle. 3. The internal structure of the program is quite complex and there are almost no comments in the code (no time to write them) but I am using very descriptive names. 0. It has an implicit and explicit solver (CCX) written by Guido Dhondt and a pre- and post-processor (CGX) written by Klaus Wittig. Matej October 26, 2024, 4:20pm 2. pmx] (sharik5. But when i change to 15,000 cycles, 3000 cycle increment and 5 wear smoothing step, the model is giving me a non-positive I plan to use CalculiX and OpenFOAM with preCICE to achieve fluid-structure interaction (FSI) simulations. Check the model. Oct 31, 2022 · Dear Matej and Jason, We would need your help in providing us the required steps to perform “static and dynamic analysis” of meshed spur/helical gears. 11) SPRING2 and SPRINGA elements can not be added in the UI. Support. inp from the Wine version, everything is fine. 1, may this be the issue? Or should I search somewhere else? In an article with free FEM packages, I listed three programs worth looking into (link to article): Salome Meca, PrePoMax and Freecad Workbench FEM. si/documentation/ PrePoMax General Questions. pmx - Google Drive) just turning on “Section view” causes PPM crash. I attached a picture of the shell model with no glass defect as well as my attempt at incorporating a defect into the analysis. I am trying to create a compound part of multiple shell elements. I will only have to check if gmsh component I am using will take all of them into account. To understand if our design makes sense and are able to verify our design assumptions and results we are using PrepoMax. 5) of the free pre- and postprocessor PrePoMax. General Questions. I also tried installing Oct 29, 2024 · A new release version of the PrePoMax contains the following FEM features: added support for defeaturing CAD parts: Geometry → CAD Part → Defeature a much faster exporter for hydrostatic pressure loads into . 4 KB. PrePoMax Unable to mesh an imported geometry. The problem is when you add some additional keywords and run the analysis from the command line. After researching a bit, I realized I may be the first person to wonder about this. The plate and bush are a compound part and the plate is fixed on 2 edges. step file, import into PrePoMax. In the aerospace/aeronautics industry where I do work we almost never use unstructured solid meshes. Rubber is somewhat different since it is a hyperelastic material, and proper material definition must be done. Happy New Year 2024 31 December 2023. Documentation. Thank you for your assistance. Forum. In this post in the CalculiX forum there is an excellent discussion about hyperelastic modeling. I imported the step file into PrePoMax and got a tetrahedral mesh that looks pretty good. 0 m. I’m guessing that ATT stands for Attempt # within that Increment, and I’m guessing that a new Attempt is when convergence for that Increment fails so the solver Oct 15, 2024 · PREPOMAX 2. So in the mean Jun 14, 2023 · Does PrePoMax load the whole results file into memory? I clearly need to refine my approach but I just would like to know if it can work. And the Oct 25, 2024 · Awesome, I guess you had to find some workaround because Gmsh doesn’t support swept meshes. 1 Like. msh file, it takes a significant amount of time, Please check Is there any mistake in the syntax? Additionally, I am unsure of how to convert a . Then copy all folders that are Nov 3, 2024 · A new release version of the PrePoMax contains the following FEM features: added support for sweep meshing; bug fixes; mega. 4: 430: December 28, 2024 Reference point not "moving" in post-processing display Hi, usually I am creating a more or less coarse 2nd or 1st order tetmesh with refinements depending on how much interessed I am in the part results. Reload to refresh your session. msh and . So the only type of symmetry that’s missing is cyclic symmetry. It has recently become more popular and is The best way to determine if a free or cheap FEA software is suitable for your project is to research and compare its features, capabilities, and limitations with your specific needs and requirements. 5. FEAnalyst June 13, 2024, 12:39pm 28. Hello everyone Below, I am attaching a 3D mesh generated from GMSH. DavidJ October 6, 2024, 2:08pm 82. Here is what I currently have: A steal roller and a sheet of rubber that is going to get rolled. 0, the Gmsh mesher is integrated, which supports hexahedral and pentahedral meshing. First, this was a limitation of PrePoMax since circular edges are needed in all vertices of the selected base surface. Virtually everything is shells, beams, springs/bushes, Recent open source "CAE" (Computer Aided Engineering), analyzing functions and calculation performance are similar to commercial "CAE tools" PrePoMax is a free structural analysis tool that is extremely easy to use and is comparable to the commercial CAE tools that incorporate the "open CAE" which has been reputed as the traditional "CAE". Hi, Does anybody know what is the default option when you don’t select any amplitudes in Modal Dynamics Setup? It’s a basic mass-spring system with a spring connected to the ground. Droid: shaft and a bush with interference fit with contact pair. However when I select all the shells elements and create the compound part, the compound part is not visible after being created. 3: 65: Some were reviewed and closed (after solving the related issues) by Guido shortly before the release of 2. msh file into a . 0GB RAM DDR3PrePoMax (https://p It’s amazing how far Prepomax has come in such a short time. 8. Try in Nov 2, 2024 · Hey friends, I’m trying to put together a mesh of a wing I made for testing purposes and realized I don’t know how to make joints. 4: 85: December 22, 2024 Random vibration analysis of a cantilever beam. Nonlinear contact in a bicycle chain. /r/AMD is community run and does not represent AMD in any capacity unless specified Jun 3, 2024 · A new release version of the PrePoMax contains the following FEM features: added support for mass section: point and distributed mass added thicken shell mesh feature added a feature to split solid mesh by a selected surface added a feature to delete faces of . But something strange is happening. 33 1249×677 88. Matej and his team are visionaries and I am so grateful that they selflessly devote their time and effort to this software. from several browsers. Now in 2. And these are needed to connect two or more bodies/nodes/remote points not to the ground but to one another. Sep 7, 2021 · You signed in with another tab or window. Convergent Mechanical has ported the application to the Windows PrePoMax Wear analysis of curved plate. Real easy. Hello everyone Some specific software can be used as comparison, but it could be okay for the purpose of preliminary Compiling PrePoMax only creates some of its subfolders and default settings are prepared. Virtually everything is shells, beams, springs/bushes, Hello everyone. FEAnalyst June 14, Jul 7, 2022 · PrePoMax. Topic Replies Views Activity; About the General Questions category. 28/07/2022 28/07/2022; by Matej Borovinšek; A new release version of the PrePoMax contains a critical fix of the hydrostatic pressure load when used with shell elements. I have a small suggestion, out of the many I’m sure you receive everyday. I have also add frequency step to Dec 10, 2023 · Is there any way to export stress or temperature fields from Prepomax to a . e. PrePoMaxの設定ファイルです。. 07/07/2022 07/07/2022; by Matej Borovinšek; A new release version of the PrePoMax contains the following FEM features: added support for a hydrostatic pressure load; And the following user features: Sep 7, 2021 · You signed in with another tab or window. The CAB method was developed at the University of Dortmund, in Germany - by the Chemical Apparats Construction working The newest version (1. Usually if I want to use UMAT for my calculations I properly modify the input file using “Edit CalculiX Keywords” option. About PrePoMax Jan 10, 2023 · Draw a circle on the surface and use the split line tool to split the surface areas. Since PrePoMax is just a pre- and postprocessor, its capabilities Oct 16, 2024 · A new release version of the PrePoMax contains the following FEM features: added support for defeaturing CAD parts: Geometry → CAD Part → Defeature; a much faster Oct 10, 2024 · A new release version of the PrePoMax contains the following FEM features (with regard to v2. I have raved about the user friendliness of the GUI since I stumbled across it a couple of years back. I’m not sure the problem is in CAD files or still a limitation, since seeing YouTube demonstration of solid transfinite mesh seems to be capable. 0 MANUAL — V. FreeCAD also implemented this features Jan 5, 2024 · I appreciate you can leave the prepomax environment and run standalone but it would be nice to stay in the prepomax and do this. FEAnalyst October 27, 2024, 5:04pm 2. PrePoMax-v1. To fully use a compiled version of PrePoMax, first look at the latest released version of the PrePoMax’s base folder. inp from the temp folder on my Windows 10 setup fails and throws the following exception: ‘The element type ‘M3D9’ is Mar 1, 2023 · Tools → Settings → Calculix → Executable: \PrePoMax v1. PrePoMax is an open-source pre- and postprocessor for an Oct 10, 2024 · A new release version of the PrePoMax contains the following FEM features: Added a tool to check the element quality: Model → Element → Element Quality; Added support for merging coincident nodes; History (for regeneration) was updated to include commands for analysis and commands for postprocessing; regeneration can now be done for the model Dec 6, 2024 · The new version of PrePoMax contains the bug fix that prevented working with material libraries. zip (559 Bytes) I was able to import. You signed out in another tab or window. For CAD and STL geometry prepare mesh setup (Mesh Mesh Setup Item Create) and generatea mesh (Mesh Create Mesh). I have attached the model we have developed can you please review and provide us your feedback if we are doing the Oct 31, 2024 · I’m new to the application, but really liking the result. inp file b It’s explained here (and download is available in the reply below): PrePoMax website. So far, all I've Jul 19, 2022 · Recently I was using prepromax to deal with an engineering problem in the auto parts industry. Luke. Does gmsh has any advantages over netgen in terms of tetrahedral mesh? In some older Move PrePoMax to a folder which is not admin protected and it will work. There is no rigid body motion. When I import the mesh. It would be great if an option of using user material (UMAT) subroutines in the *Material card was implemented. Download link and installation instruction Hello everyone, I hope you’re all doing fine! After some time away from structural analysis, I returned to PrePoMax and gladly found amazing new features in which the local coordinate system shines the most for me. at the Oct 27, 2024 · I have issues accessing the Prepomax website (any part of it) , i am getting : DNS_PROBE_FINISHED_NXDOMAIN. SecondOrderIncomplete”, 1); A demonstration of preparing revolved meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. PrePoMax is compiled in an exe file all the other projects are compiled in dll files. 60GHz, 16. Feature Requests. Thank the PrePoMax developer team for such an excellent Software. Additional Resources. PrePoMax PrePoMax website. To keep this as short as possible it comes down to these steps (after creating a good compound part): Meshing the part with initial mesh sizing PrePoMax has 6 types of solvers. Dismiss alert Oct 26, 2024 · So in the mean time, I am sharing the links to the latest PrePoMax versions: PrePoMax 2. So far I was happy with the results that netgen provided. Hey friends, I’m trying to put together a mesh of a wing I made for testing purposes and realized I don’t know how to make joints. sitepu May 17, 2024, 9:40am 1. Documentation prepared by Ihor Sep 12, 2023 · PrePoMax Tension and compresion. My mesh sizing is 0. Find more, search less Explore. 0, DECEMBER 9, 2023 3. Trevor February 18, 2024, 9:37pm 4. I have a model (a STEP file which I created as an assembly in SolidWorks) consisting of 5 parts, one of which is a 1 µm thick flexible membrane which is several mm in diam and is supported by the other 4 parts. When I use the IGES format, the solid modeled object breaks up into shells. fs. PrePoMax Creating Joints on assembly meshes. OptiMax version v0. The problem is that if the mesh of the base surface contains a triangle A new developer/preview version of the PrePoMax contains the following FEM features: added support for the creation of the field output defined by the equation (Result → Field Output → Create) added support for the creation of the history output defined by the equation (Result → History Output → Create) added support for filters for the user-created history Dear All, I am currently on PrePoMax v2. For current analysis the motor rpm would be around 9000. I do it all the time. Collaborate outside of code Code Search. synt March 18, 2023, 2:31am 5. I am progressing fast with positive results on the vast majority. 22 added support for defining Dec 1, 2023 · Description of the latest versions (1. Jan 18, 2024 · Don’t you think it would be a good idea to review this criterion for the real inputs? In the code, a special function is used every time a real value is saved to Calculix due to other CalculiX limitations. I made a simple symmetry model like in the tutorial of FEAnalyst: BoltModel 515×626 103 KB. 0, OCTOBER 14, 2024 – Surface traction – Normal shell edge load – Gravity – Centrifugal load – Pre-tension – Concentrated flux – Surface flux – Body flux – Convective film – Radiation 3 Workflow, general options (a) Geometry tab of the model tree (b) FE Model tab of the model tree (c) Results tab of the model tree Figure 2: Three Nov 21, 2023 · In PrePoMax, the entered value is per surface selected - it is then accordingly distributed to all gap elements. I tried to write about the problem on the Calculix forum, Nov 22, 2024 · Yes, of course, it works, but for some reason, it doesn’t on my current Windows 10 installation. However, it would be way more convenient to have an option of Calculation using PARDISO Solver, quarter modelTotal CalculiX Time: 1662. I have attached the inp and frd files for both connection methods. Thanks to all for a crazy year 2023 and say hello to the new year 2024. I’ve been using the default Pastix solver and it seems to be just fine for the small things I analyze these days. May 16, 2024 · I've got a part that I made in Solidworks and I want to understand how it reacts to loading. Oct 17, 2024 · A new release version of the PrePoMax contains the following FEM features: the bug preventing the use of the concentrated force on a reference point was fixed https PrePoMax is a GitLab project by Matej Borovinšek. Table of Contents:00:05 A new release version of the PrePoMax contains the following FEM features: added partial support for opening OpenFOAM results; added support to import a pressure load from OpenFOAM; added support to define a stiffness of a surface spring constraint as stiffness per area; bug fixes; And the following user features: If you run the analysis from PrePoMax, an element set is created containing such elements. Trying another approach by sweep did not succeed also. Since the Hello everyone. 49 MB file on MEGA. I am wondering if I can either; model the defect as a shell component or model it as a solid and tie the solid and shell meshes together. In my post “Wind turbine hub calculation in Ansys” you find more information of the mesh Hi, I don’t know what I am doing wrong. Version 1. ANYS November 23, 2023, 2:04pm 7. The shaft is fixed on one end and pulled on the opposite end. SetNumber(“Mesh. Schematic diagram of metal forming processes (a) forging, (b Or is it writing its own options file, with both the standalone Gmsh and PrePoMax overwriting it each time? PrePoMax uses its own version of Gmsh and uses it using an API interface. some interested benchmark of both model approach has been done by another here. To try this new tool, I decided to create a simple “bolted” joint with some RBEs simulating the connection and tried using a local coordinate A demonstration of preparing revolved meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. PrePoMax website News. Matej March 11, 2024, 8:48am 10. I can’t generate mesh on my model, took too long and seems non-stop. It was, after CalculiX In this version: History editor was added to the Edit menu the bug causing PrePoMax to become very slow was fixed some smaller bugs exterminated 🙂 The history editor enables viewing of the history and deleting selected command entries by selecting the first column of the row and using the delete key. 0 version gmsh is there as an advanced mesher. To solve this problem I usually do what Gunnar suggested me in this post (i. I have now re-installed direct to the c: folder but still get the same errors. I read the Manual, but the characteristics of the 6 types of solvers are not described. 622. 7. A place to discuss PrePoMax related questions, add new feature requests and report bugs. I had a look at one of the posted models “Clamping Hanger” and thought it odd that the 2nd step Hello comuinity, I am facing some serious issues right after switching to a windows 11 laptop. The membrane will have 1 atm of pressure applied to Dec 9, 2024 · I plan to use CalculiX and OpenFOAM with preCICE to achieve fluid-structure interaction (FSI) simulations. However, when I attempt to convert it into a . Can you please advise me where I Sep 23, 2024 · A new release version of the PrePoMax contains the following FEM features: a tool to check the element quality was added: Model → Element → Element Quality bug fixes And the following user features: bug fixes https Dec 13, 2022 · this structure consist of steel plates (box section)so I think that mesh is not so accurate as you think for steel plates shell modeling is ok but in prepomax it is not strong developed, I think that at lest 4 elements should be across thickness direction, also wedge and bricks elements are not supported in PPM . The Revolve mesh cannot be used on parts where the revolve axis coincides with a point or an edge of the geometry. Tips & Jul 21, 2022 · Good day, It seems that PrePoMax is getting more and more attention and good reviews. May it be because I use still use Win10 1607, and now something lacking in OS. Could you please review the syntax I have written and help me PREPOMAX 2. 0 PrePoMax 2. Examples manual and geometry files prepared by Jakub Michalski. 5. Is there any way to judge from convergence output in Monitor, whether a solution is probable, or if things are simply not converging. PrePoMax Category Topics; News. Mainly in the area of machine PREPOMAX 1. txt) or read online for free. nam files, while in the . Save as a . Additional models prepared to show various PrePoMax capabilities. 11): CalculiX solver was updated to version 2. To try this new tool, I decided to create a simple “bolted” joint with some RBEs simulating the connection and tried using a local coordinate PrePoMax How to use all my CPU core. I was able to import. Especially those that are nasty bugs, not just known limitations. Currently, our university network was breached by a cybersecurity attack, so the network is unavailable. For example, once a material property is added to an edited material, it cannot be removed anymore. But it’s the number of issues that’s really worrying here. Essentially it's a probe that encounters a compression load and then I want to see how it springs back (or doesn't) after the load is removed. with the . wulpqf gkukys jxqfa hxxjn bkgcymm oicq wsykl axfbfh vrdixldn kamap