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bolt preload application with external load

Question asked by shailesh fulse on Dec 16, 2020
Latest reply on Dec 18, 2020 by Jim Riddell

I have few queries on bolt preload application. Generally in FEA. simulation involving bolt preload is applied in multiple steps. First load step with only preload then the next step with both external load and preload. In this case the contact will be generated based on preload and then updated with external load in second step.


But in the case of Solidworks simulation no such options available, everything is in one step. SO does it mean preload and external load applied simultaneously,

  • Linear : Both preload and external load applied as full load
  • Non-linear :  Both preload and external load applied simultaneously with incremental load (e.g. 0.1 to 1)


Whether my understanding is correct or I am missing something.


If this correct, then I think it contradicts with the basic application of preload + external load.