Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Question
For the figure below i was able to find the correct answer, but I want to find the answer to the problem on the left. It is the same just that an 16mm * 8mm square is removed.
I know I can use my finding and subtract the rectangle using the formula under it.
please show math please!
Transcribed Image Text:Determine the moments of inertia I, and Iy of the area shown about vertical and horizontal axes running through the centroid of the
area, if b= 42 mm.
А
Ale
The value of Ī, is
x
The value of Iy
is
42 mm
28 mm.
B
558
238
X
103 mm²
103 mm4.
mm4.
A
16mm
8mm
B
42mm
B
42mm
28mm
Transcribed Image Text:Rectangle
X
Tx = 1/2 bh³
Ty ==b³h
12
1x = = bh³
1₂ = -b³h
Jc = = 2 bh(b²+h²)
12
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where do the centroid location formulas on step 2 come from?
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where do the centroid location formulas on step 2 come from?
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