Hollow Circular Section
This procedure returns properties of a hollow circular section.
Inputs
d = diameter [m, ft]
d_i = inner diameter [m, ft]
Outputs
A = area [m^2, ft^2]
I = moment of inertia [m^4, ft^4]
Z = section modulus [m^3, ft^3]
J = polar moment of inertia [m^4, ft^4]
rho = radius of gyration [m, ft]
Example:
$Load Mechanical Design
$Load Mechanical Design
$UnitSystem SI K Pa
$VarInfo A units=m^2
$VarInfo I units=m^4
$VarInfo J units=m^4
$VarInfo rho units=m
$VarInfo Z units=m^3
d=0.12 [m]
d_i=0.11 [m]
Call moi_hollowcircle(d, d_i: A, I, Z, J, rho)
{Solution:
A=0.001806 [m^2]
I=0.000002992 [m^4]
J=0.000005984 [m^4]
rho=0.0407 [m]
Z=0.00004986 [m^3]
}
Reference: Juvinall and Marshek, 5th edition, Fundamentals of Machine Component Design, Appendix B-1a