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Rahul Ponginan

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Everything posted by Rahul Ponginan

  1. Also, looks like a larger model relatively, You can use run options, like -ncpu in OptiStruct to choose the number of cores to be utilised for the solution etc. see help for all the run options for your solver,
  2. CELAS2 is the Scalar Spring Property and Connection that defines a scalar spring element of the structural model without reference to a property entry. You just have to card edit the element and enter the stiffness value in field 3 called K
  3. You just have to change the visualisation mode from auto to by comp or any other mode you are comfortable with, see the image below
  4. You can edit the geometry in such a way as to not have any intersections, this should be the first step. You can use tool > penetrations to identify and fix intersections.
  5. It may be better to create a good tria mesh and then use tetramesh procedures,
  6. You can select the nodes in question, and assign them (set reference and displacement) to the global system. (the coordinate system always visible in the bottom corner of the screen) then move the coordinate system.
  7. You can use the visualisation toolbar as in the attached image for the 3d representation of 1d beam elements
  8. Please go through the midsurfacing videos and material here http://www.altairuniversity.com/getting-started/video-library/videos-2/ http://www.altairuniversity.com/modeling/geometry-2/midsurface-pdf/midsurfacing-with-hypermesh/ http://www.altairuniversity.com/7196-advanced-midsurface-training-material/ http://www.altairuniversity.com/2525-mid-surface-meshing/ http://www.altairuniversity.com/6873-advanced-midsurfacing-self-paced-course-free-recorded-video/
  9. See page 216-217 of the free student guide - Practical aspects of finite element simulation, also see -
  10. Go to Translate panel > you can select the nodes > click on the yellow button "nodes" entity selector > duplicate > then translate by required distance. then you can use spotweld
  11. exactly where do you have problems in using the forum? once you register, you just need to "start a new topic" for a new question and the you can just use "reply to this topic" to reply and discuss
  12. no problem, this will help other users ...
  13. We strongly recommend using sT inspire (given free for students) for basic FEA,
  14. can you put up an image of the connection between hex and quad etc to explain better? you can extract faces tool > faces to create connected tria elements as a skin over the tetra elements.
  15. You will have to export to Abaqus .inp format , from file > export , after you have set the user profile to abaqus. If you are using the student edition, it is not possible to interface with abaqus.
  16. go to the line number that gives the error in notepad , See if the card specified in that line is supported, deleting the card may be necessary, Make sure your hyperworks installation has the latest updates installed.
  17. Also make sure the elements are of acceptable quality, go to tool > check elements and identify failing elements, save them and repair them using the repair tools. Remesh using a smaller element size, remesh problem areas etc refer the student guide for more details - http://www.altairuniversity.com/free-ebooks-2/free-ebook-practical-aspects-of-finite-element-simulation-a-study-guide/
  18. Do you have import as include option unchecked in the import options section? please delete your settings files and make sure there are no include files in the folder where the input file is,
  19. make sure all the elements you are exporting are tria elements, only tria elements can be exported as .stl
  20. yes, you can open multiple windows of the student edition which serves the same purpose you are looking for.
  21. see HyperWorks Desktop Applications > HyperMesh > HyperMesh Tutorials > Meshing > 3-D Elements: HM-3220: Creating a Hexahedral Mesh using the Solid Map Function
  22. Use a small element size, with the lowest tetra growth rate, or user control the growth rate, make sure the checklist attached here is followed for the surface mesh before the tetramesh, HyperMesh02 (1).pdf
  23. See the tutorial here OptiStruct > OptiStruct Tutorials and Examples > Tutorials > Topology Optimization: OS-2010: Design Concept for an Automotive Control Arm where design and non design components are separated etc
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