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  1. stressguyMike

    Boeing 747 fuse pins

    Writing a presentation for stress corrosion. An illustrative example of a catastrophic event due to stress corrosion was the crash of El Al Flight 1862 in Amsterdam in 1992. Stress corrosion of the fuse pins, m/f Nitronic 60, was determined to be the cause of engine 3 disengaging from the wing...
  2. stressguyMike

    Forming of 6061-T6511 extrusion

    Good morning, I am working on a 6 ft. long extrusion m/f 6061-T6511. The part is thick, 0.125 in. The part must be bent to a large radius. The max offset from horizontal is nearly 8 in. Currently, the drawing has the part formed in the -T6511 condition. The drawing also has a note that...
  3. stressguyMike

    Al 6061-T6511 fitting FEM

    Aircraft interior. Bin support fitting. Modeled as solid with Tet-10's. Von Mises stress exceeded Ftu on linear run. Input stress strain curve and ran as static non-linear. Non-linear output doesn't include Von Mises stresses. Output does include max & min principle, max shear, X-Y-Z...

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