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General Mechanical

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presstrss using initiate command

    • TAOUFIK
      Subscriber

      Hello

      I work on a prestressed modal of a stayed bridge in ansys mechanical, I use the command initiate to apply presstress (p=419e6 Pa) on all cables as shown in the code bellow, but I don’t understand why I don’t obtain the same stress in results, Could any one help please ?

      p=419e6

      INISTATE,SET,CSYS,-2

      INISTATE,SET,DTYP,STRE

      INISTATE,DEFINE,1,,,,p

      INISTATE,DEFINE,2,,,,p

      INISTATE,DEFINE,3,,,,p

      INISTATE,DEFINE,4,,,,p

      INISTATE,DEFINE,5,,,,p

      INISTATE,DEFINE,6,,,,p

      INISTATE,DEFINE,7,,,,p

      INISTATE,DEFINE,8,,,,p

      INISTATE,DEFINE,9,,,,p

      INISTATE,DEFINE,10,,,,p

      INISTATE,DEFINE,11,,,,p

      INISTATE,DEFINE,12,,,,p

      INISTATE,DEFINE,13,,,,p

      INISTATE,DEFINE,14,,,,p

      INISTATE,DEFINE,15,,,,p

      INISTATE,DEFINE,16,,,,p

      INISTATE,DEFINE,17,,,,p

      INISTATE,DEFINE,18,,,,p

      INISTATE,DEFINE,19,,,,p

      INISTATE,DEFINE,20,,,,p

      INISTATE,DEFINE,21,,,,p

      INISTATE,DEFINE,22,,,,p

      INISTATE,DEFINE,23,,,,p

      INISTATE,DEFINE,24,,,,p

      INISTATE,DEFINE,25,,,,p

      INISTATE,DEFINE,26,,,,p

      INISTATE,DEFINE,27,,,,p

    • Ashish Khemka
      Forum Moderator

      Hi,

      Are you expecting the same stress in all the cables as the applied prestress? The stress state can change from the prestress state.

      Regards,

      Ashish Khemka

    • TAOUFIK
      Subscriber

      OK thanks

      Regards

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