Technical notes. 2389. Fatigue strengths of aircraft materials, axial-load fatigue tests on notched sheet specimens of 24S-T3 and 75S-T6 aluminum alloys and of SAE 4130 steel with stress-concentration factors of 2.0 and 4.0 [with list of references]: by H. J. Grover, S. M. Bishop, and L. R. Jackson.

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