For a beam with the cross-section shown, calculate the moment of inertia about the z axis. Assume the following dimensions: by-83 mm h₂ = 15 mm by=9 mm b₂-72mm by-35 mm h-24 mm The centroid of the section is located 65 mm above the bottom surface of the beam.

For a beam with the cross-section shown, calculate the moment of inertia about the z axis. Assume the following dimensions: by-83 mm h₂ = 15 mm by=9 mm b₂-72mm by-35 mm h-24 mm The centroid of the section is located 65 mm above the bottom surface of the beam.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter9: Moments And Products Of Inertia Of Areas

Section: Chapter Questions

Problem 9.16P: Figure (a) shows the cross-sectional dimensions for the structural steel section known as C1020...

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Concept explainers

Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.

Question

For a beam with the cross-section shown, calculate the moment of inertia about the z axis.
Assume the following dimensions:
by-83mm
h₂ = 15 mm
by 9 mm
b₂-72 mm
by-35 mm
h-24 mm
The centroid of the section is located 65 mm above the bottom surface of the beam.
M₂
H
Answer:
mm
by

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