A 3.0 x 1.5m sign is supported by a hollow circular column, which has a 100mm outside diameter and 75mm inside diameter. A wind pressure of p=0.75kN/m² is evenly distributed across the sign area (blowing in the negative z direction). Neglect the weight of the sign and column. a. Find the state of stress at points B and D on the outside surface of the column. b. Find the principal stresses and directions and maximum shear stress c. Draw the principal stress on a stress element including the original axes

A 3.0 x 1.5m sign is supported by a hollow circular column, which has a 100mm outside diameter and 75mm inside diameter. A wind pressure of p=0.75kN/m² is evenly distributed across the sign area (blowing in the negative z direction). Neglect the weight of the sign and column. a. Find the state of stress at points B and D on the outside surface of the column. b. Find the principal stresses and directions and maximum shear stress c. Draw the principal stress on a stress element including the original axes

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Complete answer, please.

2. A 3.0 x 1.5m sign is supported by a hollow circular column, which has a 100mm outside
diameter and 75mm inside diameter. A wind pressure of p=0.75kN/m² is evenly
distributed across the sign area (blowing in the negative z direction). Neglect the
weight of the sign and column.
a. Find the state of stress at points B and D on the outside surface of the
column.
b. Find the principal stresses and directions and maximum shear stress
c. Draw the principal stress on a stress element including the original axes
1.5m
3m
5.25m

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