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Table 2 Material properties of the two aluminum alloys

From: Safety Assessment of Aircraft Fuel Tank Access Cover under the Impact Load by Tire Fragments

Material Density
Young’s modulus
Poisson ratio Yield stress
Failure strain
Aluminium alloy by machining 2700 72 0.33 276 0.35
Aluminium alloy by precision casting 2680 70 0.33 272 0.08