Moment of Inertia, Section Modulus, Radii of Gyration Equations I Sections
Strength / Mechanics of Materials Table of Content
Moment of Inertia, Section Modulus, Radii of Gyration Equations I Sections
A =  Area (in^{2}, mm^{2}) 
I =  Moment of Inertia (in^{4}, mm^{4}) 
G_{r} =  Radius of Gyration = (in, mm) 
y =  Distance of Axis to Extreme Fiber (in, mm) 
Section 

Moment of Inertia 

Radius of Gyration 

Area 

y 
Section 

Moment of Inertia 
Slope g = (h  l) / (b  t) 
Radius of Gyration 

Area 

y 
Section 

Moment of Inertia 

Radius of Gyration 

Area 

y 
Section 
Open Section Properties Case 26 Calculator 
Moment of Inertia 
g = Slope = ( h  l ) / ( b  t ) 
Radius of Gyration 

Area 

y 
Section 
Open Section Properties Case 27 Calculator 
Moment of Inertia 

Radius of Gyration 

Area 

y 
Related:
 Engineering Section Properties Common Shapes
 Section Modulus Equations and Calculators
 Section Properties Radius of Gyration Cases 1  10
 Section Properties Radius of Gyration Cases 11  16
 Section Properties Radius of Gyration Cases 17  22
 Section Properties Radius of Gyration Cases 28  31
 Section Properties Radius of Gyration Cases 32  34
 Section Properties Radius of Gyration Cases 35  37