Properties of sections part 1

Roark's Formulas for Stress and Strain
Properties of sections - table A.1 (1-14)
A=area (mm2), x/y= distance to extreme fiber (mm), I=moment of inertia (mm4), r=radius of gyration (mm), Z=plastic section modulus (mm3), SF = shape factor

1. SQUARE

distance a (mm):
angle alfa (degrees):

A square (mm2):	A
yc square (mm):	yc
xc square (mm):	xc
y'c square (mm):	y'c
Ix square (mm4):	Ix
Iy square (mm4):	Iy
I'x square (mm4):	I'x
rx square (mm):	rx
ry square (mm):	ry
r'x square (mm):	r'x
Zx square (mm3):	Zx
Zy square (mm3):	Zy
SFx square:	SFx
SFy square:	SFy

2. RECTANGLE

distance b (mm):
distance d (mm):

A rectangle (mm2):	A
yc rectangle (mm):	yc
xc rectangle (mm):	xc
Ix rectangle (mm4):	Ix
Iy rectangle (mm4):	Iy
rx rectangle (mm):	rx
ry rectangle (mm):	ry
Zx rectangle (mm3):	Zx
Zy rectangle (mm3):	Zy
SFx rectangle:	SFx
SFy rectangle:	SFy

3. HOLLOW RECTANGLE

distance b (mm):
distance d (mm):
distance bi (mm):
distance di (mm):

A hollow rectangle (mm2):	A
yc hollow rectangle (mm):	yc
xc hollow rectangle (mm):	xc
Ix hollow rectangle (mm4):	Ix
Iy hollow rectangle (mm4):	Iy
rx hollow rectangle (mm):	rx
ry hollow rectangle (mm):	ry
Zx hollow rectangle (mm3):	Zx
Zy hollow rectangle (mm3):	Zy
SFx hollow rectangle:	SFx
SFy hollow rectangle:	SFy

4. TEE SECTION

distance b (mm):
distance d (mm):
thickness t (mm):
thickness tw (mm):

A tee section (mm2):	A
yc tee section (mm):	yc
xc tee section (mm):	xc
Ix tee section (mm4):	Ix
Iy tee section (mm4):	Iy
rx tee section (mm):	rx
ry tee section (mm):	ry
Zx tee section (mm3):	Zx
Neutral axis x - from the bottom (mm):	NAx
Neutral axis x - from the top (mm):	NAx
Zy tee section (mm3):	Zy
SFx tee section:	SFx
SFy tee section:	SFy

5. CHANNEL SECTION

distance b (mm):
distance d (mm):
thickness t (mm):
thickness tw (mm):

A channel section (mm2):	A
yc channel section (mm):	yc
xc channel section (mm):	xc
Ix channel section (mm4):	Ix
Iy channel section (mm4):	Iy
rx channel section (mm):	rx
ry channel section (mm):	ry
Zx channel section (mm3):	Zx
Neutral axis x - from the bottom (mm):	NAx
Neutral axis x - from the top (mm):	NAx
Zy channel section (mm3):	Zy
SFx channel section:	SFx
SFy channel section:	SFy

6. WIDE-FLANGE BEAM WITH EQUAL FLANGES

distance b (mm):
distance d (mm):
thickness t (mm):
thickness tw (mm):

A wide-flange beam (mm2):	A
yc wide-flange beam (mm):	yc
xc wide-flange beam (mm):	xc
Ix wide-flange beam (mm4):	Ix
Iy wide-flange beam (mm4):	Iy
rx wide-flange beam (mm):	rx
ry wide-flange beam (mm):	ry
Zx wide-flange beam (mm3):	Zx
Zy wide-flange beam (mm3):	Zy
SFx wide-flange beam:	SFx
SFy wide-flange beam:	SFy

6bis. WIDE-FLANGE BEAM WITH UNEQUAL FLANGES (b2 >= b1)

distance b1 (mm):
distance b2 (mm):
distance h (mm):
thickness th1 (mm):
thickness th2 (mm):
thickness tv (mm):

A wide-flange beam unequal flanges (mm2):	A
Ix wide-flange beam unequal flanges (mm4):	Ix
Iy wide-flange beam unequal flanges (mm4):	Iy
distance bottom - neutral axis x (mm):	NAx
distance right - neutral axis y (mm)(b2/2):	NAy

7. EQUAL-LEGGED ANGLE

distance a (mm):
thickness t (mm):

A equal-legged angle (mm2):	A
yc1 equal-legged angle (mm):	yc1
yc2 equal-legged angle (mm):	yc2
xc equal-legged angle (mm):	xc
Ix equal-legged angle (mm4):	Ix
Iy equal-legged angle (mm4):	Iy
rx equal-legged angle (mm):	rx
ry equal-legged angle (mm):	ry
Zx equal-legged angle (if t/a>= 0,40) (mm3):	Zx1
Zx equal-legged angle (if t/a<= 0,40) (mm3):	Zx2
yp equal-legged angle if t/a >= 0,40 (mm):	yp1
yp equal-legged angle if t/a <=0,40 (mm):	yp2

8. UNEQUAL-LEGGED ANGLE

distance b (mm):
distance d (mm):
thickness t (mm):

A unequal-legged angle (mm2):	A
yc unequal-legged angle (mm):	yc
xc unequal-legged angle (mm):	xc
Ix unequal-legged angle (mm4):	Ix
Iy unequal-legged angle (mm4):	Iy
Ixy unequal-legged angle (mm4):	Ixy
rx unequal-legged angle (mm):	rx
ry unequal-legged angle (mm):	ry

9. EQUILATERAL TRIANGLE

distance a (mm):
angle alfa (degrees):

A equilateral triangle (mm2):	A
yc equilateral triangle (mm):	yc
xc equilateral triangle (mm):	xc
y'c equilateral triangle (mm):	y'c
Ix equilateral triangle (mm4):	Ix
Iy equilateral triangle (mm4):	Iy
Ix' equilateral triangle (mm4):	Ix'
rx equilateral triangle (mm):	rx
ry equilateral triangle (mm):	ry
rx' equilateral triangle (mm):	rx'
Zx equilateral triangle (mm3):	Zx
Zy equilateral triangle (mm3):	Zy
SFx equilateral triangle:	2.343
SFy equilateral triangle:	2.000
neutral axis x distance from the base (mm):	NA

10. ISOSCELES TRIANGLE

distance b (mm):
distance d (mm):

A isosceles triangle (mm2):	A
yc isosceles triangle (mm):	yc
xc isosceles triangle (mm):	xc
Ix isosceles triangle (mm4):	Ix
Iy isosceles triangle (mm4):	Iy
rx isosceles triangle (mm):	rx
ry isosceles triangle (mm):	ry
Zx isosceles triangle (mm3):	Zx
Zy isosceles triangle (mm3):	Zy
SFx isosceles triangle:	2.343
SFy isosceles triangle:	2.000
neutral axis x distance from the base (mm):	NA

11. TRIANGLE

distance a (mm):
distance b (mm):
distance d (mm):

A triangle (mm2):	A
yc triangle (mm):	yc
xc triangle (mm):	xc
Ix triangle (mm4):	Ix
Iy triangle (mm4):	Iy
Ixy triangle (mm4):	Ixy
Tetax triangle (degrees):	Tetax
rx triangle (mm):	rx
ry triangle (mm):	ry

12. PARALLELOGRAM

distance a (mm):
distance b (mm):
distance d (mm):

A parallelogram (mm2):	A
yc parallelogram (mm):	yc
xc parallelogram (mm):	xc
Ix parallelogram (mm4):	Ix
Iy parallelogram (mm4):	Iy
Ixy parallelogram (mm4):	Ixy
Tetax parallelogram (degrees):	Tetax
rx parallelogram (mm):	rx
ry parallelogram (mm):	ry

13. DIAMOND

distance b (mm):
distance d (mm):

A diamond (mm2):	A
yc diamond (mm):	yc
xc diamond (mm):	xc
Ix diamond (mm4):	Ix
Iy diamond (mm4):	Iy
rx diamond (mm):	rx
ry diamond (mm):	ry
Zx diamond (mm3):	Zx
Zy diamond (mm3):	ry
SFx diamond :	2.000
SFy diamond :	2.000

14. TRAPEZOID

distance a (mm):
distance b (mm):
distance c (mm):
distance d (mm):

A trapezoid (mm2):	A
yc trapezoid (mm):	yc
xc trapezoid (mm):	xc
Ix trapezoid (mm4):	Ix
Iy trapezoid (mm4):	Iy
Ixy trapezoid (mm4):	Ixy