Say we have an aluminum rectangular box beam of height h = 0.30 m, width b...

 

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Say we have an aluminum rectangular box beam of height h = 0.30 m, width b = 0.15 m, flange thickness ta = 12 mm. and web thickness tw = 5 mm. The beam is reinforced by two outer layers of unidirectional composite material of thickness t = 4 mm. The section is subjected to an axial load N = 600 kN. The Young's moduli for the aluminum and unidirectional composite are Ea = 73 GPa and Ec = 140 GPa, respectively. (a) Compute the axial stiffness for this structure. (b) Compute the max axial stress in the aluminum box beam. (c) Compute the max axial stress in the composite layers. b h Say we have an aluminum rectangular box beam of height h = 0.30 m, width b = 0.15 m, flange thickness ta = 12 mm. and web thickness tw = 5 mm. The beam is reinforced by two outer layers of unidirectional composite material of thickness t = 4 mm. The section is subjected to an axial load N = 600 kN. The Young's moduli for the aluminum and unidirectional composite are Ea = 73 GPa and Ec = 140 GPa, respectively. (a) Compute the axial stiffness for this structure. (b) Compute the max axial stress in the aluminum box beam. (c) Compute the max axial stress in the composite layers. b h