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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. 


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  1. Distance between two nodes as Output Response

    The .h3d file has also been put into your dropbox.
  2. Distance between two nodes as Output Response

    Yes the simulation is done using Radioss. I've sent the files via your Dropbox. Thanks for taking the time to help me out! Kevin
  3. Distance between two nodes as Output Response

    I'm working on a forming simulation. As shown in the picture there is a gap occuring in the corner areas of the forming diem which isn't there in experimental tryouts. I think it may have something to do with my materialparameters. So the plan is to run a optimization in Hyperstudy with my materialparameters as input variables and the distance between some nodes following this gap as output response. By minimising the distance between these nodes the gap should be closed and my materialparameters should fit the real materialbehaviour. Currently I'm importing the design variables by parameterized .rad file (template .tpl) I hope this helps to understand my problem. Btw I'm fairly new to HyperStudy.
  4. Hi all, I want to optimize the distance between two nodes in Hyperstudy. Is there a way to calculate the distance between two nodes with known ID's in the expression builder for Output Responses? Kevin
  5. Hi all, towards the end of my simulation I'm always getting multiple errors regarding a negative area in some elements. 156100 0.1231 0.9462E-07 NODE 100000250 -81.9% 5593. 6745. 0.000 0.6832E+05 0.000 NEGATIVE AREA: DELETE CONNECTION SOLID ELEMENT 100021614 NEGATIVE AREA: DELETE CONNECTION SOLID ELEMENT 100017264 156200 0.1231 0.9419E-07 NODE 100000250 -82.0% 5595. 6736. 0.000 0.6838E+05 0.000 What does this mean and how can I avoid this error? I'm attaching my .out files. Kevin Test2_0001.out Test2_0000.out
  6. Fiber Orientation [Composite PostProc]

    Hi, sadly I can't remember where I got it from. I attached the full .PDF, you can find the reference to the .txt. file on page 85. I hope this helps. Kevin HF_Training_Composite_Forming_EN.pdf
  7. Fiber Orientation [Composite PostProc]

    Hi Rahul, thank you for the answer. But that's not what I meant. I attached two Pictures which should make my question a little bit clearer. I want to Display the Fiber Orientation in every Element and am looking for the correct Expression to Input in the Derived Results Panel. Kevin
  8. Hi all, I want to Display a Contourplot of the Fiber Orientation using Hyperview. I found a documentation .PDF (HF-Training_Composite_Forming) on the Internet with a reference to a file called "Expression_builder_fiber_orientation.txt", but I don't know where to find this .txt file. The Expression in this .txt file seems to be pretty complicated. Does anyone know where to find this file or how to do a Contourplot of the Fiber Orientation in another way? Kevin
  9. Question regarding Springelements

    Alright! Thank you very much
  10. Question regarding Springelements

    Hi George, But if I enter a stiffness value, the Force will be calculated as F=K*x, in which the Force will not be constant as defined in fctID11. In fact, there would be two diffrent Force values defined at each step if I understand correctly. I'm looking forward to your test model. Kevin
  11. Hi all, I want to model a spring with constant force over its elongation. In PROP/TYPE4 I tried to set H1=8, so I can insert a constant function in fctID11(which defines Force vs spring length). When I tried to start my simulation an error occured "Spring with null stiffness, K has to be bigger than 0". From my understanding I wouldn't need to define a K-Factor as it's already defined in fctID11.. Any ideas on how to model a spring with constant force? Is it possible to give a function for the K-Factor? Regards Kevin
  12. Hello Forums, I want to setup a composite forming simulation in Hyperform using the Multilayered approach but with resin in between the plies. On the forums I found the example from the attached .rad files, but I don't really understand how it is setup.. I always thought the multilayered approach uses one blank for one ply, in this example all plies seem to be combined in one single blank and the resin components showing in the Modeltab are not even included in the User Process Tab. I hope someone can give a short explanation or tutorial on how to properly setup the resinlayers in User Process. Thanks independent_layers_with_resin_new_0000.rad independent_layers_with_resin_new_0001.rad