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Cetim Cobra (English version) : Dimensioning of bolted joints

Cobra V6
Cobra V6

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Dimensioning of pre-stressed controlled tightening bolted joints

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dimension your joints with Cobra V6

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 Cetim Cobra has found broad success with the transport industry. The latest version of Cobra features the following

 

  •  support for the latest industrial recommendations,
  •  optimised database management,
  •  improved software ergonomics and user-friendliness,
  •  integration of new technologies, such as the integration of Nordlock washers,
  •  export of calculation memos to word processing software.

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 V6 version of Cetim’s Cobra software provides you with a French - English bilingual solution.

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Calculate your bolted joints to suit the expected service conditions

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Cetim Cobra allows you to check the static and dynamic behaviour of screws, bolts and studs, depending on the following:

  •  geometry of the attachment point and of the assembled parts,
  •  assembling conditions and stresses introduced during the assembling process,
  •  mechanical and thermal stresses in service,
  •  conditions of application of the tightening torque .

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Optimise your bolted joints in accordance with the directives currently in force:

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Cetim Cobra complies with the various industrial recommendations and allows you to compare the results obtained as per the following standards:

  •  VDI 2230 (1986), VDI 2230 (2003), VDI 2230 (2014)
  •  FDE 25-030,
  •  Standard NFE 2503 part 1 & 2
  •  ESA PSS.03.208 (issue 1)

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Avoid separation and loosening of your bolted joints

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Cetim Cobra ensures the two main functions of a bolted joint:

  •  without oversizing or unnecessary safety coefficient,
  •  through optimisation of the various parameters by fast simulation calculation,
  •  through comparison of technically permissible configurations in relation to economic criteria,
  •  through viewing of the pressure cone inside the bolted joint and the compressed surfaces.

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Determine the optimum tightening torque in relation to:

  •  the stresses,
  •  the strength of the bolt,
  •  the withdrawal strength of the threads,
  •  the peening of the seating surfaces,
  •  the friction torque.

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Training to bolted joint dimensioning

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Cetim offers various training sessions to better suit your needs:

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Training session in your premises: Optimisation and dimensioning of bolted joints with COBRA V6 software

  •  duration: 4.5 days on site,
  •  personnel concerned: training for technical advisors and design office or process engineers,
  •  content:
     
    •  knowledge of standards,
    •  characteristics of a bolt,
    •  behaviour of bolted joint,
    •  presentation of Cobra V6 software,
    •  practical work with Cobra V6,
    •  study of a concrete case with Cobra V6.

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Inter-company training: Dimensioning of bolted joints and use of the Cobra V6 software

  • duration: 3 days in Cetim’s premises,
  • personnel concerned: training for design office or process technicians and engineers,
  • content:
    •  static and dynamic characteristics of attachment parts,
    •  design of a bolted joint,
    •  determination of the tightening torque,
    •  presentation of Cobra V6 software,
    •  practical work with Cobra V6,
    •  loosening, off-centred forces,
    •  Cobra V6 database.

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Inter-company training: Use of the V6 Cobra software

  • duration: 1 day in Cetim’s premises or on site,
  • personnel concerned: design office or process technicians and engineers involved in the calculation of bolted joints and the implementation of the tightening torque,
  • content:
    •  introduction to bolted joints,
    •  presentation of Cobra V6,
    •  practical work with Cobra V6,
    •  loosening, off-centred forces,
    •  Cobra V6 database.

For further details on the dates and conditions of the training sessions, please click HERE

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 Ask for your FREE trial version :

 

 Fill up and complete the following form

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Some of our customers:

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Cobra Références 2

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Actualités du logiciel

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Cobra V6 is now available !

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After 3 months used by 6 industrial beta testers, Software development team have just signed the Ready to Manufacturing delivery. Cobra V6 integrates bolted joint dimensioning performed per VDI 2230 (2003).

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Customer under valid maintenance contract will receive soon this new “state of the art” version.

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 For further information, contact Isabelle Carson in clicking HERE.

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Special Training for Cobra V5 users

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Cetim has set up a special dedicated training for Cobra V5 users in order to discover the new user interface and understand the difference between the 2 codes : VDI 2230 (1986) and VDI 2230 ( 2003).

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For information and inscription, contact Isabelle Carson in clicking HERE

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