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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. Can you please send me the file and tutorial for OS-3400. I cannot find in my help page, not even googling is helping. Thank.
  2. Can you suggest a tutorial about area-connectors adhesive? From start to end. Which material card needs to be chosen? Lets say example Epoxy resin. Thank you.
  3. Hypermesh - Aerospace - Sewing Tools

    Good idea. Never thought about that. Will give it a try. Thanks Prakash.
  4. Hypermesh - Aerospace - Sewing Tools

    No error while solving. The rbe3 elements look fine visually. But, post processing, I get huge displacements and stress. I am curious to find out whether the connection between GFEM and DFEM didn't happen correctly. Thanks Rahul.
  5. I am using the function sewing tools function from Aerospace module. I have a doubt. How can I verify whether all the GFEM are attached to DFEM? via RBE3. Thanks.
  6. Ceramic Fatigue Analysis

    Great but I don't have any idea. Is their any documentation (tutorial) or sort? Can't it be done in Optistruct? Thanks.
  7. Ceramic Fatigue Analysis

    And Weibull model is used for reliability analysis, instead of SN curve. No idea, how can I use it in Hypermesh.
  8. Ceramic Fatigue Analysis

    ALON, aluminium nitride. Major props: Structure Cubic, Spinel Lattice Constant 7.956–7.936 Å Density 3.69 g/cc Form Polycrystalline Melting Point 2150°C Young’s Modulus 320 GPa Shear Modulus 135 GPa Poisson’s Ratio 0.24 Hardness 1800±100 kg/mm2 (Knoop indentation, 200g load) Fracture Toughness 2.0MPa-m1/2 Flexure Strength 300-700 MPa Specs: http://www.surmet.com/pdfs/ALON%20Data%20Sheet.pdf Objective: Cyclic loading. HCF. Find the damage, life expectancy.
  9. Ceramic Fatigue Analysis

    Any Idea, how one can perform fatigue analysis of structural ceramic materials? Thanks.
  10. Error 1000 How to diagnose?

    Never mind, I found out the issue. Thanks for assistance.
  11. Error 1000 How to diagnose?

    *** OptiStruct defaults set from: install config file: C:\Program Files\Altair\13.0\/hwsolvers/optistruct.cfg. NOTE # 9199 MSGLMT=STRICT is active, all messages will be printed. You can suppress some less important warning messages by use of MSGLMT=BRIEF or UNREF (in config file or in the input data). 1 PARAM(s) were set: POST ,-1 *** See next message about line 448965 from file: D:/xxxxxxxxx/xxxxxx/xxxxxxxxxxxxxxxxxxx.fem "MAT1 5320000.0135000.00.24 3.69-6" *** WARNING # 1030 Consistency requirement E=2G(1+NU) violated. Different values of G (either provided or inferred) will be used. See the Material Quality Checks section of the documentation. *** See next message about line 449103 from file: D:/xxxxxxxxx/xxxxxx/xxxxxxxxxxxxxxxxxxx.fem (this is continuation line 1 of LOAD,24 bulk data) "+ 1.0 0 1.0 2000 1.0 2002 1.0 2010" This line was interpreted as: 449103:+ , 1.0, 0, 1.0, 2000, 1.0, 2002, 1.0, 2010 *** ERROR # 1000 *** in the input data: Incorrect data in field # 3. Expected <name.>ID or blank, found INTEGER (0). ************************************************************************ RESOURCE USAGE INFORMATION -------------------------- MAXIMUM MEMORY USED 266 MB MAXIMUM DISK SPACE USED 1 MB ************************************************************************ ************************************************************************ COMPUTE TIME INFORMATION ------------------------ EXECUTION STARTED Mon Dec 28 10:44:30 2015 EXECUTION COMPLETED Mon Dec 28 10:44:36 2015 ELAPSED TIME 00:00:05 CPU TIME 00:00:05 ************************************************************************ *** PROGRAM STOPPED: FATAL ERROR(s) ENCOUNTERED. ***** END OF REPORT ***** For Useful OptiStruct Tips and Tricks, go to the URL: http://www.altairhyperworks.com/tips.aspx ************************************************************************ A fatal error has been detected during input processing: *** See next message about line 449103 from file: D:/xxxxxxxxx/xxxxxx/xxxxxxxxxxxxxxxxxxx. (this is continuation line 1 of LOAD,24 bulk data) "+ 1.0 0 1.0 2000 1.0 2002 1.0 2010" *** ERROR # 1000 *** in the input data: Incorrect data in field # 3. ************************************************************************ Sorry.
  12. Error 1000 How to diagnose?

    I am extremely unfortunate. I can't share the file. I am working on college project. And the design belongs to others. Can you please tell how to diagnose it? Based on the information given? Thanks. And I really appreciate your assistance.
  13. Error 1000 How to diagnose?

    I am getting the following error. See next message about line 449103 from file: D:/xx/xxxxx/xxxxxxx. (this is continuation line 1 of LOAD,24 bulk data) "+ 1.0 0 1.0 2000 1.0 2002 1.0 2010" *** ERROR # 1000 *** in the input data: Incorrect data in field # 3. How to find out whats wrong? Some ppl had similar error but, they had some clue. ex "CQUAD" was there instead of "+" Thanks .