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  1. opethian

    animated giff

    we will use it for explicit analysis and we have a in house giff generator but it doesnt work well with abaqus so i have to write sth. myself then ...
  2. opethian

    animated giff

    Thanks rst. but it is not allowed to install gif conversion programs to my computer here but thanks for the reply...
  3. opethian

    animated giff

    Hi to all abaqus people, Does anyone knows how to make animated giff out of explicit results. Do you know any scripts? Thanks and regards.
  4. opethian

    Exhaust Manifol Thermo-Dynamic Analysis

    Hi to all Abaqus People, My project is to investiga the thermal stresses on a exhaust manifold. The test try to duplicate in abaqus consists two different boundary loads one is thermal cycle and other one is the vibrations from the engine. I try to do it in abaqus coupled thermal displacement...
  5. opethian

    How to skip the element check in abaqus ?

    i see... u both say right in my opinion but the interesting point is they claim that this model is running there is a possiblity that they gave me an older version of input file or they do it with a purpose i just want to find out they by considering if there is a way to skip the checkk test. ...
  6. opethian

    How to skip the element check in abaqus ?

    but i need those elements for the compatibility of my model and i have a lot of errorenous elemnets so i heard from more experienced engineers that there shuld be a way to just sk?p the element quality check. I didnt mesh the model and i have to run this model without and re-mesh. that the...
  7. opethian

    How to skip the element check in abaqus ?

    Hi to all experts, I have another hot topic for you !!! I have a question about the element check in abaqus. When i run a model done by another person i got an error message like ErrElemVolSmallNegZero this is because of element quality. It is ok so far but they claim that it is possible to run...
  8. opethian

    Stress at integration points or at nodes ?

    ditto FEA is undergrad level course in my country and do not worry i passed several FEA courses . My question was about post processors mostly. If you have used hyperwork and abaqus post processors you will be confused soon for sure you will be confused about the programs. Best is to write your...
  9. opethian

    Stress at integration points or at nodes ?

    Think of that you have a 3-D model and you simulated some forces acting on it. And get a Stress contour ? it should have normally the most accurate results at integration points (or not)? but then you have 4 integration points so should we extrapolate the results to the nodes ? or for this...
  10. opethian

    Base motion

    Hi to all, My problem is to give base excitation to a part in two point and with different directions and magnitudes. Is it possible to do that in abaqus ? Can i give 2 different base excitation to the system in modal dynamics?
  11. opethian

    Multiple Base motion

    Hi to all, My problem is to give base excitation to a part in two point and with different directions and magnitudes. Is it possible to do that in abaqus ? Can i give 2 different base excitation to the system in modal dynamics?
  12. opethian

    Vibration shaker

    Tim, Thanks for your info, I have a question regarding to PSD analysis could you please take a look at it also. It is in ideas and also vibration forum.
  13. opethian

    Bolt modelling

    Thanks for your valuable ideas about bolt modeling. I keep trying those modeling ways. so it seems that the only way to model the bolt is 3-D modeling. If there is a way to model the bolts with beam elements can you send me details about it.
  14. opethian

    Bolt modelling

    Hi to all, Nowadays we are trying to model bolts by using beams instead of solid modelling them. My question is how can i apply pretension force to the beam element in abaqus or in hypermesh ? do you have any opinions about bolt modeling with beam elements and pre tension. I wanna to find an...
  15. opethian

    multiple processor

    Thanks silver. I got i queston this code you gave has to be written in dat file isn´t it and why do we have to add bdf as an extension ? thanks for your replies
  16. opethian

    multiple processor

    Hi Thomas i couldnt find table 1-1 what do you mean by QRG ? i am new to this subject so may be i dont know it yet ? Thanks a lot for your help
  17. opethian

    multiple processor

    Hi Thomas, I am using MSC Nastran 2005.1.2 version it is 32 bit i am running nastran in windows XP. I think i have licence for multiple processor use could you please let me know how to make those settings for bulk data file or the command line for initation file. Regards
  18. opethian

    multiple processor

    Hi i would like to ask if it is possible to use multiple processors for modal analysis in nastran ? and if yes how ? i have a PC with 2 double core processors. Can i use mutiple processor with sol 103 ?
  19. opethian

    excessive stress after bolt pre-load step in abaqus simulation

    hi to all We are try'n to make a thermal analyze aprox. 15 cm long heavy exhaust Manifold head and part of engine block where the part is attached. Problem that we encountered recently is excessive preload at the bolt neck. In the model we have pre-load at the middle section and bolt is...
  20. opethian

    excessive stress after bolt pre-load in abaqus simulation

    hi to all We are try'n to make a thermal analyze aprox. 15 cm long heavy exhaust Manifold head and part of engine block where the part is attached. Problem that we encountered recently is excessive preload at the bolt neck. In the model we have pre-load at the middle section and bolt is...

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