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Forensic Engineering Fundamentals
book

Forensic Engineering Fundamentals

by Harold Franck, Darren Franck
December 2012
Beginner to intermediate content levelBeginner to intermediate
487 pages
17h
English
CRC Press
Content preview from Forensic Engineering Fundamentals
17Structural Distress
is integral is recognized as the rst moment of the section about the x-axis and is equal
to yA and to zero about the centroid located on the x-axis. ese forces are thus repre-
sented as a couple with a bending moment M so that if we integrate over the entire section
we obtain
MAA==
∫∫
ky dkyd
22
(2.25)
is integral is the second moment or moment of inertia with respect to the x-axis and is
denoted as I
x
. So with respect to both axes we dene the moments of inertia as
IA
IA
xy
==
∫∫
yd ;
22
xd
(2.26)
We may also dene the polar moment of inertia as
JA
o
= rd
2
(2.27)
It can easily be shown that
JII
oxy
=+
(2.28)
ese concepts are summa
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Publisher Resources

ISBN: 9781439878392