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(Solved): Fatigue cracks around the rivet holes in the fuselage of Aloha Airlines Flight 243 resu ...
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Fatigue cracks around the rivet holes in the fuselage of Aloha Airlines Flight 243 resulted in disaster as shown in Figure 4. After inspection of a similar airliner, cracks were found around rivet holes in the fuselage skin (see Figure 5) which is made of 2024-T3 aluminum alloy. For this alloy: Sy = 350 MPa, Kc=45 MPaÖm, Su = 400 MPa, EL% = 11.
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a.)Will the fuselage rupture immediately? State clearly all assumptions required to solve this question. |
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b.) What is the critical crack length (tip-to-tip) for this structure?
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Figure 5