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Recent content by P2FModder

  1. P2FModder

    Help Required for Free-Free Modal Run

    Thank you all for the replies. I will respond to each reply: @GregLocock, I am afraid we no longer have OEM support for this project. This validation was/should have been done some time back by some one else when we would have had OEM support. I have just been asked to step in and help out a...
  2. P2FModder

    Help Required for Free-Free Modal Run

    Hello everyone, I have ran into an issue which I have not experienced before while performing a free-free check. I am wondering if this is an indication of a deeper problem or is it something that I should not worry about. The project is a modification of an OEM aircraft. So, we were able to...
  3. P2FModder

    Built-in Stress Effects on Fatigue Spectrum

    Hi there, I have a generic question. I have fatigue stresses for a particular aircraft which is derived by scaling "Reference Stresses" from FEM with spectrum factors (S_fat = S_ref x factor). Both of which were provided by the aircraft OEM. The scaled stresses are then used for fatigue and...
  4. P2FModder

    Skin Buckling and Stringer IDT

    Hello there, First time poster but been reading the forum for sometime now. I would like to pick the expert's mind regarding Bruhn's methodology when it comes to skin buckling and stringer IDT. I have read the bruhn a few times regarding the IDT phenomena and I have not been able to find a...

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