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Unformatted text preview: operations, which provides a margin for unexpected maneuver loads and gust loading. Engine disks regularly experience about 90% of their design limit load, as their loads are much more predictable due to the dominance of the centrifugal loading. Determine the critical crack size in your top ranked materials for each application under normal operating loads. d) Hence comment on the feasibility of using a damage tolerant design approach in each case. Material Density Young's Yield Stress Fracture Kg/m 3 Modulus (GPa) (MPa) Toughness MPam Al Alloy 2024 (T3) 2800 70 345 44 Al Alloy 7075 (T651) 2800 70 495 24 Ti Alloy Ti-6Al-4V 4510 110 910 50 Steel 17-7 PH 8000 193 1435 77 (Stainless) Medium Carbon 7800 208 260 54 Steel...
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- Fall '05