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Prakash Pagadala

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Prakash Pagadala last won the day on September 18

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About Prakash Pagadala

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    HyperWorks Specialist

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  1. Prakash Pagadala

    Hex mesh

    @Mrt We are improving our system consistently along with adding new learning material on Learning Library.
  2. Prakash Pagadala

    Changing height of DesignSpace during optimization

    I am sorry, but I thought you are doing a shape optimization but not a topology. Topology optimization will alter the material density (removes materials) but I don't think it will have much effect on the shape.
  3. Prakash Pagadala

    Hex mesh

    Hi @Aslan I have done some part of the meshing, You can do the rest by manual meshing map.hm
  4. Prakash Pagadala

    Changing height of DesignSpace during optimization

    Hi, I can see from the out file that optimization is not started and element quality started failing even before optimization,
  5. Prakash Pagadala

    Changing height of DesignSpace during optimization

    The error message you got shows that the model failed in the element validity check and the FEA solver cannot process the simulation on the model with such poor element qualities. To fix this error, you may have to find the bad meshes and remesh that area.
  6. Prakash Pagadala

    Error 144

    I think the problem is coming from the material. can you please check the material data? Why E1 is not provided?
  7. Prakash Pagadala

    Changing height of DesignSpace during optimization

    Hi, Can you add PARAM>>CHECKEL>>NO and check if this helps?
  8. Hi @Zdeny OSSmooth with lattice activates the smoothing process before the generation of the lattice. One can also provide a target mesh size to achieve desired results. During second phase the beam elements are sized to the bounds and are resulted lattice structure is ready to print. The best path for 3D printing for now is to use 3-Matic from Materialise to read .fem file of the lattice result. Altair Inspire does has a feature which generates lattice CAD and soon it should be available with OptiStruct
  9. Prakash Pagadala

    Changing height of DesignSpace during optimization

    Hi, Can you share the .out file, please?
  10. Prakash Pagadala

    Imposed displacements calculation

    Hi, You can impose displacement using SPCD, Please refer to this forum post: https://forum.altair.com/topic/14697-apply-enforced-displacment/?tab=comments#comment-48257
  11. Prakash Pagadala

    Element quality check between nastran and optistruct

    Hi Gopal. Can you share a sample model with difference in warpage between Nastran and OptiStruct?
  12. Prakash Pagadala

    Identification of global and local mode in modal analyis

    Hi Gopal, I couldn't find anything apart from that and I wrote to experts on the same.
  13. Prakash Pagadala

    Contact Penetration

    @Farzin Thank you, I will check and get back to you soon
  14. Prakash Pagadala

    OVERHANG constraint OptiStruct

    hI @Zdeny OverHang constraint is available from 2017.2.1 Please update your HyperWorks Desktop to the latest.
  15. Prakash Pagadala

    Ale Material Indentation Model

    Hi @roybudha Can you try with type 18 contact instead of type 9 and check if that helps?