20 1 60 mm 40 40 2 20 3 Ꭹ . 20 Z
Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
5th Edition
ISBN:9781305084766
Author:Saeed Moaveni
Publisher:Saeed Moaveni
Chapter7: Length And Length-related Variables In Engineering
Section: Chapter Questions
Problem 42P
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Question
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The composite beam shown in the figure is subjected to a bending moment Mz=8 kNmMz=8kNm.
The elastic moduli for the different parts are E1=30 GPa, E2=20 GPa, and E3=60GPa.
a) Determine the reduced moment of inertia IredIred for the entire beam.
b) Sketch the bending stress distribution in the beam.

Transcribed Image Text:20
1
60 mm
40
40
2
20
3
Ꭹ .
20
Z
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