Fatigue Strength of Airplane and Engine Materials (1934)
NASA Technical Reports Server (NTRS) · leaf 36
ed _+ " A annealed. 20 O ti 3 A „ m M 15 1 o •H CO a 10 CD Figure 11.-Tension vs. number of stress reversal:; for aluaifiaira alloys according to tests "by Johnson and Oherg. 0.1 1 10 100 1000 stress reversals, millions Alloy A heat-treated,with 4.01 Cu 0.22 Si 0.7? Hn 0.57 Mg;cfB=41.6 kg/mm2 " A… … 15 50 45 35 40 20 10 25 30 Tensile strength, t5g, kg/mm^
NASA Technical Reports Server (NTRS)
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