8/8/2019 Section Channel
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Section_Channel.xls
To determine section properties
By Alex Slocum, 12/28/03, last modified 09/21/04 by Xue'en
Yang
Schematic
Section dimensions ValuesLength of flange, a (mm) 50
Thickness of flange, b (mm) 3
Length of web, cc (mm) 25
Thickness of web, d (mm) 3
Corner fillet, rr (mm) 2
Corner inscribed circle, DD (mm) 4.201
Section properties
Area (mm) 359
yNA (neglect corner radii) (mm) 17.819
Ibending (mm^4) 93191
Itorsion (mm^4) 1095
Approx. max torsional stress/Torque (N/m^2) 3.83E-03
Equations
Ignores radii r in bending moment calculations
Derivation of DD:
terma 1
termb -24
termc 46
Enters numbers in BOLD, Results in RED
( )
( )( )( )
( )
2 22 2 2 2
34 43
44
222 2
12 2 12 22 2 2
1 12 0.21 1 0.105 1
3 12 2 3 1922 2
bending NA NA NA
torsion
b c ba d a d a dab d c b y y yI
ab d c b
b c db ba b dbI D
ca a b c b
+ = = + + + +
= + +
b
d
c
ayNA
Dr
flange
web
( ) ( ) ( )2 2 2
2 22 2
let22 2 2
6 2 2 2 0
D D D D Rd r b r r
R r d b r b d b dR r
+ = =+ + +
+ + + + + + =
