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Student Edition License problem
Hello Altair Team support, My Altair One account only shows the Workspace interface (Marketplace, Drive, HPC).I cannot access the Software Portal (Products → HyperWorks → Get License). As a result, I cannot activate the HyperWorks Student Edition license and OptiStructFEA_Student does not appear in Managed Licensing. Could…
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How to use your Student Edition License
Please, is there someone who can help me with a license issue? This is my first time installing HyperWorks products. I followed the recommended steps: I downloaded hwDesktop2025.1_win64.exe and installed it, then activated the license using the activation key generated on my Altair One account. I downloaded…
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How can I contour stress on composite and see stresses on each ply in my model.
How can I contour stress on composite and see stresses on each ply in my model.
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Plot stress in the ply direction (Radioss + HyperView 2025)
Hello, I created a simple Radioss 2025 model of a composite cube with the P6_SOL_ORTH property. After opening the .h3d, it is impossible to plot the stress in the composite orientation (Ply system) with HyperView 2025 : I have the following parameters in the 0001.rad file : /H3D/DT 0.0 0.001 /H3D/ELEM/TENS/STRESS…
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nanoFluidX to structural analysis (Optristruct).
Hi. Does anyone know how to transfer the results of a "Tank Sloshing" calculation from nanoFluidX (pre- and postprocess within Simlab) to boundary conditions in a structural analysis, e.g., linear static or Explicit Dynamic (Optistruct, Radioss)? This is a necessary connection to obtain the correct pressure distribution in…
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角度やエアバッグの体積によるEngineの停止
Description: Radiossで、角度やエアバッグの体積が指定値以上になった場合に解析を停止することは可能でしょうか？ センサーによる解析停止キーワードとして/STOP/LSENSORがありますが、 調べても角度やエアバッグの体積の/SENSORがないようで、 ユーザー定義センサーやユーザーサブルーチンなどを使用すれば可能でしょうか？ Product/Topic Name : Radioss 2026
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Carbon Fiber Reinforcement Modeling, Radioss, Twill weave type
May I ask how to model (twill weave type) carbon fiber in Hypermesh Radioss, with material MAT/25-COMPSH and property type 17 (STACK). And also facing a problem of material reference orientation. In Optistuct can use (System) to adjust the material reference orientation. But in Radioss how can I do that. Sometimes is…
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Impact of a tennis ball against racket strings - No rebound
Goodmorning everyone I am currently setting up a simulation in Radioss involving the impact of a tennis ball against racket strings. The model details are as follows: Racket Strings: Modeled using truss elements with initial pretension applied. Tennis Ball: Modeled using shell elements. I have tested both hyperelastic…
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Visualize applied pressure with HyperView
Pressure is applied on SHELL elements using PLOAD entry. After computing the analysis, I would like to visualize the applied pressure on the model with HyperView. I tried the following outputs : /ANIM/SHELL/PEXT /ANIM/SHELL/P /ANIM/ELEM/P /H3D/SHELL/PEXT None of them seems to be working. The analysis is performed using…
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Request for Honeycomb Crashbox Material Data and Reference Models in Hyperworks LS-DYNA
Hello, Currently I am working on developing a honeycomb structured crashbox model in Hyperworks Ls Dyna. I am looking for any reference material, example models, tutorial files, or validated datasets for setting up an aluminum honeycomb crashbox/impact attenuator simulation. If there are any relevant resources or you can…
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PRELOAD/AXIAL TRUSS ELEMENTS RADIOSS
Hello everyone, I am working on a Radioss explicit simulation in HyperMesh 2026 and I need to apply an axial preload tension to a set of truss elements (string modeled with /PROP/TYPE2) to simulate the pretension of a tennis racket stringing. According to the Radioss 2026 Reference Guide, this should be done using the…
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Support for AltairRadioss v2026.1 on RHEL8.10
Hi Communinty, Is the Support for AltairRadioss v2026.1 on RHEL8.10? v2026.1 supports RHEL 9.6 and above, not RHEL 8.4?
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Help with geometry simplification Hypermesh Optistruct
Good morning everyone, I am currently working on the pre-processing of a tennis racket geometry. As you can see from the image attached, I would like to simplify the area around the hole by removing the fillets, as they are preventing a proper mesh generation and making the geometry too complex. I have been using the…
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I am doing model of Composite+Steel for 3point bending simulation.But still have problems on contact
I am doing with Radioss. I have uploaded my model's results. Can you please kindly check for me.
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OpenRADIOSS
Can someone provide information on OpenRADIOSS, I use HPC to solve RADIOSS models with multiple nodes/cores. Is OpenRADIOSS compatible with HPC's?
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Can EDEM couple with the explicit algorithm of a structural solver other than OptiStruct?
I have a polyurethane screen panel. Using MotionView, I’m not able to reproduce its motion, and the panel also needs to interact with bulk material. Therefore, I am considering using OptiStruct as the solver. However, I feel that OptiStruct does not provide as many explicit analysis control options as Radioss. So I would…
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Wind fluid structure interaction
Hii everyone, I have this long pole subjected to wind loads. I want to perform fluid structure interaction between wind and the pole. The pressure regions around it and the structure response and vortex shedding too. I need a tutorial for that.
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Composite tennis racket in Radioss
Hi everyone, I am currently working on modeling a composite tennis racket to simulate the impact of the ball with the racket strings. I have a few doubts regarding the simulation of the strings: should I represent them using 1D beam elements ? Also, what type of contact should I implement between the strings? Would an…
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Segment face not exported correctly
Description: I am trying to use the new version of HyperMesh 2026 to create a segment set for the faces on my obstacle, but it is not working. When I export the model to a Radioss file, the segment set does not appear there. Instead it goes under sets/general. Could you help me understand what might be causing this issue…
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Radioss - Composite thermal expension and CornerData
Hello, With Radioss 2025 I have two specific questions about composite elements : The composite is modeled using 3D P6_SOL_ORTH elements with LAW12. Is it possible to have a different coefficient of thermal expansion (THERM_STRESS) for each of the 3 composite directions? For post-processing with HyperView 2025, how do I…
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Gasket pretension analysis
Hii everyone, I want perform pretension analysis on gasket for checking sealing and gasket bulging when loaded. Since gasket is non-linear I tried Radioss. I'm new to that. I tried copying RD-HM-T:1010 tutorial. It started confusing at start and at last I made something. Plates, gasket and bolts using 4 node tetra elements…
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Failure of 3D plies of composite
Hi ! I'm doing a composite model, using the law12_3D_COMP in RADIOSS ans i'm trying to model its failure. The impactor is a rigid ball and i have been following the example named : "Modeling of Hypervelocity Impact in Composite Laminates with Altair Radioss". In my case, I don't want to use orthstrain for the failure but a…
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BULLET IMPACTING A PLATE ISSUES
Hi, I'm trying to do a model of an 9 mm bullet impacting a laminate on RADIOSS. I'm only using the lead core of the bullet with the LAW49 STEINBERG (Hyd_JHOOK and jonhson cook are also modeled). The laminate has got the law12 and is only a 3D block right now. Therefore, i tried using Finite Element only, then SOL2SPH and…
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Hourglass Issue
Hi, I have a RADIOSS model in which an electronics unit is modelled as 1st order shell elements. This component is modelled to have an initial velocity and impacting a rigid wall. It looks like there is an hourglass phenomena occurring and the solve is killed with an error that says "energy error limit reached". I have…
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Modeling 3-Point Bending Test of Sandwich Panel: OptiStruct or Radioss?
Hello everyone, I am working on a FE simulation of a 3-point bending test on a sandwich panel using HyperMesh 2025.1. Model Details: Components: Top and bottom face sheets + different types of core formats Material: All metallic parts. Interface: The face sheets are bonded to the core crests using a resin layer.…