A cylindrical wood covered with steel is the cross-section of the post of a signage as shown. The steel signage has a thickness of 20 mm with a 1.5 m width by 1 m height dimensions and has a density of 7500 kg/m. During storm, the wind strike the signage a pressure of 0.9 kPa. Neglecting the weight of the post and the stress from the torsional moment, find the following; Esee 200 GPa, Eod 10 Gna. Outside diameter of the post is 100 mm, inside diameter is 80 mm. a. The Ia of the transformed section with wood as base material. b. State of stress at point A. Principal stresses and maximum in plane shear stress of "C". d. The transformed stresses of "C" at 20° clockwise.
A cylindrical wood covered with steel is the cross-section of the post of a signage as shown. The steel signage has a thickness of 20 mm with a 1.5 m width by 1 m height dimensions and has a density of 7500 kg/m. During storm, the wind strike the signage a pressure of 0.9 kPa. Neglecting the weight of the post and the stress from the torsional moment, find the following; Esee 200 GPa, Eod 10 Gna. Outside diameter of the post is 100 mm, inside diameter is 80 mm. a. The Ia of the transformed section with wood as base material. b. State of stress at point A. Principal stresses and maximum in plane shear stress of "C". d. The transformed stresses of "C" at 20° clockwise.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A cylindrical wood covered with steel is the cross-section of the post of a signage as shown. The steel signage has a thickness of 20 mm with a 1.5 m width by 1 m height dimensions and has a density of 7500 kg/m. During storm, the wind strike the signage a pressure of 0.9 kPa. Neglecting the weight of the post and the stress from the torsional moment, find the following; Esee 200 GPa, Eod 10 Gna. Outside diameter of the post is 100 mm, inside diameter is 80 mm. a. The Ia of the transformed section with wood as base material. b. State of stress at point A. Principal stresses and maximum in plane shear stress of "C". d. The transformed stresses of "C" at 20° clockwise.
Transcribed Image Text:Assume that the signage was embedded deep into the centroid of the transformed section.
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