drgondog
Major
I've seen wreckage pieces from two different B-52 crash sites that looked like wing structure and had cracks with patches riveted over them and patches over the patches. Aerolasticity, right? And these were supposedly young airframes.
Fatigue is certainly in the domain of Aeroelastic driven structural issues. The B-52 experienced many 1G reversible loads in normal flight - Ditto UH-1 Hueys due to the rotor +/- loading on the airframe - both different from high frequency/harmonic excitation that you saw on the F-4 wing and tail.