Rectangular Section
This procedure returns properties of a rectangular section.
Inputs
b = width [m, ft]
h =height [m, ft]
Outputs
A =area [m^2, ft^2]
I = moment of inertia about centroid [m^4, ft^4]
Z = section modulus [m^3, ft^3]
rho = radius of gyration about centroid [m, ft]
y_bar = centroidal distance [m, ft]
Example:
$Load Mechanical Design
$UnitSystem SI K Pa
$VarInfo A units=m^2
$VarInfo I units=m^4
$VarInfo rho units=m
$VarInfo y_bar units=m
$VarInfo Z units=m^3
b=0.4 [m]
h=0.5 [m]
Call moi_rectangle(b,h: A, I, Z, rho, y_bar)
{Solution:
A=0.2 [m^2]
I=0.004167 [m^4]
rho=0.1445 [m]
y_bar=0.25 [m]
Z=0.01667 [m^3]
}
Reference: Juvinall and Marshek, 5th edition, Fundamentals of Machine Component Design, Appendix B-1a