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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
52 Forensic Engineering Fundamentals
σ
1
72
1 924
37 42==
R
RFlexuralStress
.
.
(2.105)
σ
2
12
2 252
533== =
P
A
R
RDirectStress
.
.
(2.106)
Sum of two tensile stresses
σσ σ=+=
12
42 75.
R
(2.107)
e torsional shearing stress at A is
τ=
==
T
J
R
R
24 2
21924
12 47
()
(. )
.
(2.108)
J = polar moment = 2I.
Maximum stresses at A are
τ
max
(. )(.)[. .].=+ =21 375 12 47 4 5689 10 155102475
22 22
RR
RR
(2.109)
σ
P1
=+=21 375 24 75 46 125...RR R
(2.110)
σ
P2
=−=−21 375 24 75 3 375...RR R
(2.111)
According to the maximum normal stress theory using 64 ksi steel at max
64 = = = 46.125
1.39kip
f P1
ττ R
R =
(2.112)
According to the maximum shear stress theory
64/2= ==24.75
1.29kip
fmax
ττ R
R =
(2
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Publisher Resources

ISBN: 9781439878392