Introduction
Welcome to our calculator for the moment of inertia for a triangular section. Enter the height (H) and width (B) of your section below, and see the results in the output section below.
This tool calculates Ixx and Iyy about the centroidal axis.
Calculations
⬇️ Inputs
H
:150mmb2>0 if angle α is acute (<90°)
B1
:500mmb2<0 if angle α is obtuse (>90°)
B2
:123mmb2=0 for right triangle
⬆️ Outputs
Moment of inertia
Ixx (mm4)
:46875000
Iyy (mm4)
:424227083
Dimensions
Area
:37500mm2
xc
:207.666667mm
yc
:50mm
alpha
:13.8203395deg
💬 We'd love your feedback on this template! It takes 1min
Explanation
The moment of inertia of a triangular section can be calculated using the equations shown to the right. B1 represents the section's width, and H is its height.
b2>0 if angle α is acute (<90°)
b2<0 if angle α is obtuse (>90°)
b2=0 for right triangle