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HW5 - GJ among circular square and equilateral triangular...

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EAS4200C Aerospace Structures Homework #5 (Due: Oct. 9th) 1. A thin aluminum sheet is to be used to form a closed thin-walled section. If the total length of the wall contour is 100 cm, find the cross-sectional shape that will achieve the highest torsional rigidity,
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Unformatted text preview: GJ , among circular, square, and equilateral triangular shapes. 2. Find the torque capability of the thin-walled bar with the section shown in the figure. Assume that the shear modulus G = 27GPa and the allowable shear stress of τ allow = 187MPa....
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