Prepomax review I get this a lot when I have pin to compute. When setting up the new laptop I installed the . Support. FEAnalyst January 27, 2024, 10:53am 2. 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. 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. 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. 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. 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. Feb 14, 2023 · I am trying to simulate the how defects in glass impact the internal stress of the glass. The Revolve mesh cannot be used on parts where the revolve axis coincides with a point or an edge of the geometry. PrePoMax user experience is demonstrated in a video playlist published on Youtube. 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. Happy New Year 2024 31 December 2023. Thanks to all for a crazy year 2023 and say hello to the new year 2024. 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. I need help setting up analysis and getting the results. The ultimate Hi, In the version I’m currently using (v2. 6 dev. Download link and installation instruction Contribute to JunTatsuno/PrePoMax development by creating an account on GitHub. [1] The original software was written for the Linux [2] operating system. 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 . An open-source Netgen library performs the meshing. Dec 2, 2024 · Hello, I am trying to use the PREPOMAX program to calculate a 3D thermal bridge. csv or . 33 1249×677 88. 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 have a shape like a tophat, where the brim is pulled away from the top so to speak, in bending/shear. inp file, I only keep references to the points and NEST, along with content such as material properties, boundary conditions, forces, and outputs. Navigation Menu. Greetings team, If the number of cycles is kept at 15, cycle increment 3 and wear smoothings step 5, the simulation is converging. 0GB RAM DDR3PrePoMax (https://p It’s amazing how far Prepomax has come in such a short time. But it’s the number of issues that’s really worrying here. Forum. fatmac January 26, 2024, 9:54pm 3. I am using version v. i did not further review personally, but i think it will be shown as is. 5. It splits the geometry into source, side, and target surfaces. 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. There is no rigid body motion. 0 dev\Solver\ccx2. 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. When I use the IGES format, the solid modeled object breaks up into shells. Check the model. It also supports an import of the finite element mesh from a file. Thank the PrePoMax developer team for such an excellent Software. 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. PrePoMax Adding new keywords and running the analysis. 32 1246×653 89. So far I was happy with the results that netgen provided. 2. Main problem is for me with size of model and Oct 10, 2024 · PrePoMax Models repository by Matej Borovinšek on GitLab. 49 MB file on MEGA. 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. Additional models prepared to show various PrePoMax capabilities. Mainly in the area of machine design. material-definition. And in this file [sharik5. PrePoMax PrePoMax website. The new version is indeed useful. Then the facesheet is fixed at the bottom and a pin is put through the hole. The CAB method was developed at the University of Dortmund, in Germany - by the Chemical Apparats Construction working The newest version (1. 3: 62: December 23, 2024 Question on BDS. may it would be useful feature when PrePoMax can generates automatically of beam element, dcoup3d, additional nodes and equations. 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. 4. , I use the compound part) Bolts shear contact not working correctly (see his first post). Manage code changes Discussions. 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. pmx - Google Drive) just turning on “Section view” causes PPM crash. The layers fo the facesheet are - A real life experiment was done on the following facesheet and those were the results. The entire history can be deleted using the Clear button. 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". 20\ccx. 4. inp from the Wine version, everything is fine. Analysis types. Feb 5, 2023 · PrePoMax is a simple and intuitive use pre- and post-processor for the Calculix solver. 001 mm. So far, all I've Jul 19, 2022 · Recently I was using prepromax to deal with an engineering problem in the auto parts industry. FEAnalyst October 27, 2024, 5:04pm 2. 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. 2 Likes. at the Oct 27, 2024 · I have issues accessing the Prepomax website (any part of it) , i am getting : DNS_PROBE_FINISHED_NXDOMAIN. 26: 1974: December 29, 2024 Welcome to Discourse. 8. Tips & Jul 21, 2022 · Good day, It seems that PrePoMax is getting more and more attention and good reviews. 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. Problem in Surfaces assignment. Documentation prepared by Ihor Sep 12, 2023 · PrePoMax Tension and compresion. 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. I am finding that some of the benchmarks I’m doing are super easy to configure. I also assigned it material properties that I'm pretty sure are accurate. 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. Analyze/review source code Improving existing source code Adding needed features Develop new functions. 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. 3 sCPU Intel(R) Core(TM) i7-4720HQ CPU @ 2. PrePoMax website News. 1 thickness and 1. 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. I can’t generate mesh on my model, took too long and seems non-stop. 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. In today’s article I will describe the second of these. and my model is a circular bound surface with 0. Usually if I want to use UMAT for my calculations I properly modify the input file using “Edit CalculiX Keywords” option. 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. Dear PrePoMaxers, regarding bolt connections I have two questions. Hello everyone Below, I am attaching a 3D mesh generated from GMSH. But other function seems works proper and PPM 2. 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. diameter. screenshot. PrePoMax Creating Joints on assembly meshes. 0 m. It can be very useful for shafts, impellers and so on. 0, the Gmsh mesher is integrated, which supports hexahedral and pentahedral meshing. 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). I read the Manual, but the characteristics of the 6 types of solvers are not described. The shells were imported as an “. 3. 4 and 1. 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. 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. 0 PrePoMax 2. 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 compiled in an exe file all the other projects are compiled in dll files. 622. Unless the geometry is particulary nasty but it doesn’t seem to be the case here. An overview of the most important features is listed below. The new list view with mouse over selection integrated into version 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. Static linear analysis; Static nonlinear analysis with geometric, material and I’m using PrePoMax v2. I have raved about the user friendliness of the GUI since I stumbled across it a couple of years back. 0, support for material names with @ was added in 2. Dismiss alert Oct 26, 2024 · So in the mean time, I am sharing the links to the latest PrePoMax versions: PrePoMax 2. So it acctially wrote 1E-9. 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. 0; Documentation PrePoMax allows you to mesh a solid or a shell-based geometry using linear and parabolic finite elements. step file, import into PrePoMax. Examples manual and geometry files prepared by Jakub Michalski. You can PrePoMax. how to create a thermal simulation of heat transfer between 2 components that are in contact. SetNumber(“Mesh. Matej November 3, 2024, 9:35am 2. some interested benchmark of both model approach has been done by another here. 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. igs” file, which was created using Autocad by drawing the basic geometry of two H-profile PrePoMax Issue Steady state Dynamic Step. However, when I attempt to convert it into a . 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. 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. 11): CalculiX solver was updated to version 2. General Questions. It seems that the permissions changed somehow. Any advise ? Thanks. The mesh can also be generated with no setup items - it will use default settings. A category for the PrePoMax news. 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. The problem is very simple, but the model is very complex, with many bad surfaces, and it is difficult to directly mesh. Code Review. I haven’t run an explicit model in ages so I need to review the details about the setup. Find more, search less Explore. 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). 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. 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. 21 but there are still quite a few left. CGJ June 13, 2024, 12:49pm 29. 3 KB. There are fillets down in the corners. I have big issue with static analysis of assembly with contact. For example see convergence results from my current run convergence. 2 dev. The side surfaces must be 4-sided to be quad meshable while there is no limitation to source and side surfaces. Last year I did some simple research in non-linear behavior using PrePoMax successfully. 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. The forum posts also seem to be growing by the day. However, it would be way more convenient to have an option of Calculation using PARDISO Solver, quarter modelTotal CalculiX Time: 1662. I’m using PPM v1. I was able to import. Matej and his team are visionaries and I am so grateful that they selflessly devote their time and effort to this software. xml file for a 3d domain. 55. For Prepomax, it might be an option to use the dat file values (with assumed locations of the IPs. This process requires using cgx to export points and NEST as . I have a facesheet of glass epoxy with a hole in the middle. 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. Contribute to JunTatsuno/PrePoMax development by creating an account on GitHub. um. AsuraEquation November 5, 2024, 1:25pm 30. 0, analysis is dynamic implicit (I couldn’t get explicit Weld simulation model use CAB methode. It has an implicit and explicit solver (CCX) written by Guido Dhondt and a pre- and post-processor (CGX) written by Klaus Wittig. 0: 253: February 1, 2022 A new developer/preview PrePoMax version v2. 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. msh and . I have reviewed the inp files, and I believe they are set up correctly. 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. DavidJ October 6, 2024, 2:08pm 82. Additional Resources. I do it all the time. We are very keen if you can cover the below list of topics and any other Sep 27, 2024 · PrePoMax Bolt pretension model. And also applied a force on top of the mass. When I use the STP format, the program imports only one of the objects. 60GHz, 16. 0, I Apr 29, 2024 · Hello Community, I am new in PrePoMax but I have some experience with Inventor Nastran. 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. For CAD and STL geometry prepare mesh setup (Mesh Mesh Setup Item Create) and generatea mesh (Mesh Create Mesh). This function wrongly identified 1E-9 and added a decimal separator at the end of the value. I understand now. 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. It is also helpful to read reviews and seek recommendations from other users who have experience with the software. I have now re-installed direct to the c: folder but still get the same errors. 11/18/24 08:20:25 Warning: The opened file is from an incompatible version: PrePoMax v2. In the first one, amplitude option is selected to a certain amplitude defined. 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 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. In this post in the CalculiX forum there is an excellent discussion about hyperelastic modeling. SecondOrderIncomplete”, 1); A demonstration of preparing revolved meshes using the PrePoMax pre and post-processor for the CalculiX FEM solver. I couldn’t find such result option in prepomax. And these are needed to connect two or more bodies/nodes/remote points not to the ground but to one another. Dec 5, 2024 · The new version of PrePoMax contains bug fixes. However when I select all the shells elements and create the compound part, the compound part is not visible after being created. The issues I am facing consist into the unability to select some random faces of step models when defining new surfaces or node sets. 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 will only have to check if gmsh component I am using will take all of them into account. Thanks. Probably I can re-run the failed simulation from PrePoMax to generate the element set for review. Define Now I reused the full Hexaeder mesh (Hex20 & Wedge15 only) from Ansys in PrePoMax to make some comparisons. 1. PrePoMax Unable to mesh an imported geometry. You signed out in another tab or window. Nov 14, 2022 · Dear Matej, We are in the process of evalutng PM-SynRM. Matej: I have fixed this can be review for both linear and quadratic element Video Tutorials. pdf), Text File (. For current analysis the motor rpm would be around 9000. I attached a picture of the shell model with no glass defect as well as my attempt at incorporating a defect into the analysis. News. Trevor January 5, 2024, 12:58pm 1. I hope our guys will fix this problem soon. Sep 7, 2021 · You signed in with another tab or window. I imported the step file into PrePoMax and got a tetrahedral mesh that looks pretty good. results, dynamic. Collaborate outside of code Code Search. Optima September 12, 2023, 8:36pm 1. 22 added support for defining Dec 1, 2023 · Description of the latest versions (1. Version 1. FEAnalyst June 14, Jul 7, 2022 · PrePoMax. 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. Droid: shaft and a bush with interference fit with contact pair. 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. I have been working on this for whole week and now I just don’t have more power to face this. from several browsers. 4 KB. PrePoMax. Trying another approach by sweep did not succeed also. After researching a bit, I realized I may be the first person to wonder about this. 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. . 0: 572: February 1, 2022 LE6 Skew plate under normal pressure. Adding combinations of optimization techniques is not problem. I made a simple symmetry model like in the tutorial of FEAnalyst: BoltModel 515×626 103 KB. In the aerospace/aeronautics industry where I do work we almost never use unstructured solid meshes. zip (559 Bytes) I was able to import. 34 1242×724 111 KB. PrePoMax Heat thermal analysis. 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. When the mesh is successfully created, proceed to the FE Model part of the model tree. First of all, it’s my first time participating in this group. To solve this problem I usually do what Gunnar suggested me in this post (i. 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. Virtually everything is shells, beams, springs/bushes, Hello everyone. 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. Amos November 27, 2024, 4:50am 1. It would be great if an option of using user material (UMAT) subroutines in the *Material card was implemented. thanks. It seems it will take longer to set up our University network. Reload to refresh your session. Navigation Menu News. 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. First, this was a limitation of PrePoMax since circular edges are needed in all vertices of the selected base surface. Especially those that are nasty bugs, not just known limitations. 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. A category to state general questions, give opinions and discuss interesting ideas. gerardoe97 October 17, 2024, 10:09am 1. Jun 13, 2024 · Try in PrePoMax 2. Bug Reports. e. Feature Requests. A place to discuss PrePoMax related questions, add new feature requests and report bugs. txt) or read online for free. With Aug 26, 2022 · As a main/only PrePoMax developer I am happy to hear that you like the GUI. 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. Froz September 27, 2024, 12:21pm 1. The plate and bush are a compound part and the plate is fixed on 2 edges. I also tried different formats via FreeCAD. To understand if our design makes sense and are able to verify our design assumptions and results we are using PrepoMax. I was using Umat Aug 31, 2024 · A new release version of the PrePoMax contains the following FEM features: improvement of the . Dynamic analyzes and hex meshing with GMSH. 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. Could you please review the syntax I have written and help me PREPOMAX 2. Rubber is somewhat different since it is a hyperelastic material, and proper material definition must be done. 0, DECEMBER 9, 2023 3. 3: 65: Some were reviewed and closed (after solving the related issues) by Guido shortly before the release of 2. I’ve been using the default Pastix solver and it seems to be just fine for the small things I analyze these days. About PrePoMax PrePoMax is a pre and post processor for the Calculix solver. For example, once a material property is added to an edited material, it cannot be removed anymore. OptiMax version v0. si/documentation/ PrePoMax General Questions. The problem is when you add some additional keywords and run the analysis from the command line. Option. Mainly in the area of machine PREPOMAX 1. Real easy. 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. inp. To fully use a compiled version of PrePoMax, first look at the latest released version of the PrePoMax’s base folder. Inputs: Fastener location using reference points or XYZ coordinates and fastener data. Currently, our university network was breached by a cybersecurity attack, so the network is unavailable. 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. 0 version gmsh is there as an advanced mesher. From version 2. The CalculiX was selected for this purpose due to its maturity and similarity of the input files with Abaqus. 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. /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 . fs. I guess you would May 16, 2024 · I imported the step file into PrePoMax and got a tetrahedral mesh that looks pretty good. I am trying to create a compound part of multiple shell elements. In general the contact interaction (hard) between surface is not acting in my model. Amplitude inputs and responses are below. CGJ June 23, 2024, 12:23pm 32. But something strange is happening. PrePoMax Category Topics; News. Matej April 5, 2023, 5:26am 5. 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. 6 Likes. 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. zchlrnr November 3, 2024, 7:35pm 21. Since the Hello everyone. May 3, 2024 · Gmsh shouldn’t generate elements with negative jacobian if Second order linear is enabled and it is by default in PrePoMax. synt March 18, 2023, 2:31am 5. 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. PrePoMax UMAT option in PrePoMax. ANYS November 23, 2023, 2:04pm 7. Matej October 26, 2024, 4:20pm 2. Convergent Mechanical has ported the application to the Windows PrePoMax Wear analysis of curved plate. 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. 1-manual - Free download as PDF File (. 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 . Do you mean how to connect them so that heat can flow between them ? . Is there any way to judge from convergence output in Monitor, whether a solution is probable, or if things are simply not converging. 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. PrePoMax Models repository by Matej Borovinšek on GitLab. I have also add frequency step to Dec 10, 2023 · Is there any way to export stress or temperature fields from Prepomax to a . Until now, there was no other The new version implements suppression-only support using GAP elements. Contributions. Matej March 11, 2024, 8:48am 10. So the only type of symmetry that’s missing is cyclic symmetry. 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. 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. The sweep meshing was tested on a couple of examples. WIwat December 24, 2024, 6:14pm 1. I have mainly used it as a tool in my teaching. 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. Thanks, Oren. 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. Based on the dat file, all the options you listed from ABAQUS would be available in the postprocessor. PrePoMaxの設定ファイルです。. Hopefully, he will find some time to resolve at least a few of them. Features. Now in 2. 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. However, the mesh. 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. Dismiss alert Nov 4, 2024 · I mesh it outside but you can use both, extruded or revolve algorithms with Delaunay for quads inside Prepomax. A colleague tested it in Wine on Linux, and it works there as well. However, I have a problem with importing the 3D geometry. 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). Here is what I currently have: A steal roller and a sheet of rubber that is going to get rolled. Nonlinear contact in a bicycle chain. 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. 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. And the Oct 25, 2024 · Awesome, I guess you had to find some workaround because Gmsh doesn’t support swept meshes. When I import the mesh. I am progressing fast with positive results on the vast majority. The shaft is fixed on one end and pulled on the opposite end. PrePoMax-v1. About PrePoMax Jan 10, 2023 · Draw a circle on the surface and use the split line tool to split the surface areas. 0. nz 165. You switched accounts on another tab or window. 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. inp file b It’s explained here (and download is available in the reply below): PrePoMax website. 11) SPRING2 and SPRINGA elements can not be added in the UI. Thank you for your assistance. msh file into a . 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. Documentation. pmx] (sharik5. 0 11/18/24 08:20:25 Some items might not be loaded correctly. sitepu May 17, 2024, 9:40am 1. 4 prevents some UI functionality. Please confirm if I have set them up correctly. Save as a . 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. 1 Like. 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. May 16, 2024 · I've got a part that I made in Solidworks and I want to understand how it reacts to loading. I have attached the inp and frd files for both connection methods. txt file? Something with the node data (x,y,z location) and the Radeon, Zen3, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. I don’t see much talk about solve speed these days. I wanted to do a mesh refinement early Compiling PrePoMax only creates some of its subfolders and default settings are prepared. Downloads. 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. I am also surprised that settings in these files override the settings PrePoMax sets using: Gmsh. With it, the PrePoMax homepage is also down. Then, I tried removing this constraint, and I got to another problem. nam files, while in the . with the . Luke. 0) introduced support for axisymmetric models. Joe December 12, 2024, 3:39pm 1. 5) of the free pre- and postprocessor PrePoMax. Hi all, I’ve noticed that my system monitor shows only one core being utilized out of my 4-core CPU. For me though the one frustrating thing has been selection of surfaces in preparation (pre), and probing nodes/elements in post. An additional video playlist by Jakub Michalski is also published on Youtube. FEAnalyst May 17, 2024, 9:52am 2. 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. Trevor February 18, 2024, 9:37pm 4. Topic Replies Views Activity; About the General Questions category. 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. May it be because I use still use Win10 1607, and now something lacking in OS. Thank you. 7. 4: 85: December 22, 2024 Random vibration analysis of a cantilever beam. 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. FEAnalyst June 13, 2024, 12:39pm 28. 6 has been released. Oct 11, 2024 · I’m a newcomer to PrePoMax and have a simple question about shells and membranes. 0 MANUAL — V. 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. 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 . Gunnar: What shows your step/increment bar? As I mentioned above it only shows 1,0 thru 1,8 no sign of step 2. NET framework 4. – 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. My mesh sizing is 0. 6 dev version: A developer/preview PrePoMax version v2. 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. Usually large deformations, contacts and plastic deformation I have a suggestion regarding some future versions of PrePoMax. 5. I am using Gmsh for 2D mesh generation, while PrePoMax generates 3D mesh. 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. 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. I have a small suggestion, out of the many I’m sure you receive everyday. xph qtclfn gdk swqtdtv tua tou uvwt hshab qbmzwmn hmypmpbm