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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 
    • Rahul Ponginan

      ユーザーフォーラムについて   10/22/17

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Found 11 results

  1. Hi everyone, What is better approach to connect a 2D shell element to a 1D element? I have a assembly with 3 components, 1 bracket modeled by 2D elements which carries the load, 1 plate modeled by 2D elements likewise, where the bracket is lay and also, shall be interface component between bracket and beam component and 1 beam component modeled by 1D elements where loads and displacements must be transfered. The connection between bracket and plate was modeled by Cbush elements which represents bolts stiffness, therefore, my concern is how can I model the connection between plate and beam to represent a weld? I have attached a picture which it clarifies my problem. The green one is a bracket, red is a plate and magenta is a beam. Thank you, Richard
  2. Hello! We have the following problem by using OSSmooth for a FEA reanalysis: Our component is made up of a core (blue) and a shell (red/orange). The core has Hex 8 3D-Elements with the Card Image MAT 1 and PSolid. In order to create a shell around the core of the component, we used the tool "Find Faces". Thus we got a shell around the core with Quad 4 2D-Elements. We used the Card Image MAT8 and PShell with an offset to the outside T=2mm. Therefore there should be no intersection between the two kinds of elements (see figure 1). Both the core and the shell was defined as design space so that we optimized them both in a successful optimization. See figure 2: Holes and notches were created in the shell as well as in the core. Afterwards, we tried to import the optimized geometry with OSSmotth by using the following settings: FEA Reanalysis, iso surface, remesh, trias as mesh type and two layers attached. As a result the 3D-Elements has been updated according to the optimization result, but not the shell (see figure 3). Furthermore we got a very questionably visualization of the shell elements: At the attachment points between core and shell, the shell elements strangely stick to the outside and inside (see figure 4 and 5). Are there any mistakes in our settings or in the modelling? Thank you very much in advance for your tips and advices! Greetings Martin
  3. Hello, I am trying to build a rigid mbd model with rigid bodies engaging in 2D rigid-to-rigid contact. I have defined curves where the contacts will occur, using the Add Curve functionality. Attached images 1.png, 2.png and 3.png from my curve panel, showing the settings I am using for all three contact curves. As you can see, in the Z direction, they all have the same value as 0. So they are indeed coplanar as they all line on the XY plane. I proceed to define a 2D rigid-to-ridig contact. Attached image, contact.png, shows my settings for one of the contacts I use. I have also made sure to correctly define the contact sides; so there are no problems there either. Finally, attached image, error.png, shows two of the error messages I'm getting. All my error messages are the same so I am only showing those two. It is telling me my curve graphics are not coplanar. However, what it seems is that they actually are indeed coplanar. I would be grateful for any help to fix this problem. Best regards
  4. Hello dear forum visitors, AFDEX 3D can read AFDEX 2D results files either directly or by means of a simple connecting program, and thus 2D and 3D combined simulations can easily be carried out. Of course, the 2D results can be viewed by the 3D post-processor with more powerful graphics functions. Figure 1. shows the predictions of a five-stage precision cold forging process involving one piercing stage and a final three-dimensional stage, obtained by using the 2D and 3D combined simulation capability with minimum user intervention (i.e., with only an initial run and one connection run). Figure 1: 2D and 3D combined simulation - AFDEX It should be noted that this capability is especially efficient for fastener forming process simulation. The 2D and 3D combined simulation is strongly recommended for enhancing computational time, solution reliability, and engineering productivity when relatively few stages are three-dimensional. So it's time to use your resources smartly. Cheers from AFDEX Support team!
  5. Error - 2D mesh with BL

    Hi all, im doing the CFD-1300: Plane 2D Meshing with BL tutorial. But even following the tutorial this error appears (attached image) How can i solve that? Thanks
  6. Hi, how can I set the material orientation of the 2d elements along the circumferential direction of this ring profile? picture attached. thank you, arh423
  7. Hi there, my problem is as followes: i built up a squarish composite plate (carbon) with orthotropic material property. I edited the laminate with "symmetric" option to realize the orthotropic material behave. Now my problem is that I want to check the material behave varying ply direction and ply thickness. So the plate should obtain 10 mm height on the left edge and 9 mm on the right edge to simulate an angular load initiation, Now the symmetric laminate option causes a result which I dont want to realize (see attachment). Can you tell me how to realize that? Maybe with shell to solid conversion (how do i get there?)? Regards
  8. Hi, I have been doing some size and composites optimizations and have been working with 2D elements. I want to export the geometry including the results of the thickness of my elements/plys to visualize in other prgramms (eg iges, step). Is this possible? if so how? thanks Diego
  9. 2D meshing- Midsurface

    Hi, After viewing the 2D meshing web tutorials, I have a question regarding the midsurface. Do we always need to do the midsurface for 2D meshing? Can we just keep the original geometry and mesh it? As I am new to Hypermesh and learning 2D meshing, I am trying to outline the general steps. Thanks, Hoa
  10. 2D centrifugal force

    Hi... I am a new user of Hyperworks. I want to analyze the centrifugal force and the depending stresses and displacments. My part is a little bit like a CD. I want to this in 2D. My Questions> 1. Which element should i use? 2. How to create the constrains? 3. How the creat a cylindrical coordinatesystem? Best regards Alex
  11. 2D instead of 3D

    Hi, I'm trying to analyze the support for the transmission of a formula student car The part of the preprocessor is well done( I think so) because I've already done more times, however when viewed in HyperView I get a 2D view instead of 3D. Anyone know why this happens? Thank you
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