Question: Determine the density and the bending stiffness (equivalent flexural stiffness) of a sandwich beam constructed of aluminum face sheets (thickness 1.0 mm each) and an

Determine the density and the bending stiffness (equivalent flexural stiffness) of a sandwich beam constructed of aluminum face sheets (thickness 1.0 mm each) and an aluminum foam core (thickness of 15 mm). The length of the beam is 300 mm and the width of the beam is 100 mm. Use the material properties in the tables below. Mechanical Properties of aluminum 6061 face sheets Young's Modulus (MPa) 70,000 Poisson's ratio 0.33 Density (kg/m3) 2700 Shear Modulus (GPa) 26 Yield Strength (MPa) 370 Ultimate Tensile Strength (MPa) 430 Mechanical Properties of aluminum 6061 core Cell size (mm) 9 Young's Modulus (MPa) 4000 Poisson's ratio 0.21 Density (kg/m3) 430 Shear Modulus (GPa) 1.7 Yield Strength (MPa) 11 Ultimate Tensile Strength (MPa) 15

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