Question: Calculate the maximum internal crack length allowable for a 7075-T651 aluminum alloy (Table 8.1) component that is loaded to a stress one half of its

Calculate the maximum internal crack length allowable for a 7075-T651 aluminum alloy (Table 8.1) component that is loaded to a stress one half of its yield strength. Assume that the value of Y is 1.35.

Kic MPa Vm Yield Strength ksi Vin. Material MPa ksi Metals Aluminum

Kic MPa Vm Yield Strength ksi Vin. Material MPa ksi Metals Aluminum Alloy (7075-T651) Aluminum Alloy" (2024-T3) Titanium Alloy" (Ti-6Al-4V) Alloy Steel" (4340 tempered @ 260C) Alloy Steel" (4340 tempered @ 425C) 495 72 24 22 345 50 44 40 910 132 55 50 1640 238 50.0 45.8 206 1420 87.4 80.0 Ceramies 0.2-1.4 Concrete 0.18-1.27 Soda-Lime Glass Aluminum Oxide 0.7-0.8 2.7-5.0 0.64-0.73 2.5-4.6 Polymers Polystyrene (PS) Poly(methyl methacrylate) (PMMA) Polycarbonate (PC) 0.7-1.1 0.64-1.0 53.8-73.1 0.7-1.6 7.8-10.6 0.64-1.5 62.1 9.0 2.2 2.0

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