A cantilever solid pole 280 mm in diameter and 3m high weighs 22kN/m³. The pole is subjected to the following: vertical load, P = 3kN at an eccentricity, e = 100 mm from the centroid of the section; lateral force, H = 0.45KN at the top of the pole increasing the base moment.

A cantilever solid pole 280 mm in diameter and 3m high weighs 22kN/m³. The pole is subjected to the following: vertical load, P = 3kN at an eccentricity, e = 100 mm from the centroid of the section; lateral force, H = 0.45KN at the top of the pole increasing the base moment.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.5.16P: A sign is supported by a pipe (see figure) having an outer diameter 110 mm and inner diameter 90 mm....

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Concept explainers

Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.

Question

ANSWER SHOULD BE

ANSWER KEY:

57) 0.88 MPa

58) 0.65 MPa

59) 9.7 KPa

Please answer number 57, 58, and 59. Thank you

SITUATION 19.
A cantilever solid pole 280 mm in diameter and 3m high weighs 22kN/m³. The pole is subjected to the
following: vertical load, P = 3kN at an eccentricity, e = 100 mm from the centroid of the section; lateral
force, H = 0.45KN at the top of the pole increasing the base moment.
57. What is the maximum compressive stress at the base?
а. 0.75 MPа
c. 0.65 MPa
d. 0.52 MPa
b. 0.88 MPa
58. What is the maximum tensile stress at the base?
с. 0.75 MPа
d. 0.65 MPa
а. 0.88 MPа
b. 0.52 MPа
59. What is the maximum shearing stress in the pole?
а. 9.7 КРа
b. 5.4 KPa
c. 13.2 kPa
d. 11.5 kPa

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