Last Updated on September 8, 2026 by Maged kamel
Video for Ix for a rectangle section.
How do we get the expression for Ix for a rectangular section? By using a horizontal strip of length b and integrating with respect to a vertical axis Y passing through the left side of the rectangle.
Another alternative method to get Ix for the rectangular section about CG. width dy, we can integrate with respect to a horizontal axis passing through the rectangular base.
The video timestamps are shown.
- 0:00 – Estimate the moment of inertia for the x-axis passing through CG.
- 1:05- Estimate the product of Inertia and Polar Moment of Inertia in a rectangular section.
- 1:30- Ix for the rectangular section by a horizontal strip (b*dx) about an external axis X.
- 5:16- Ix for the rectangular section of(b*h) about an external axis X and also about the CG.
- 6:29- Another alternative method to get the Ix for the rectangular section about the CG.
You can download the PDF for the video content.
The related post is Post 3- Easy Introduction to Ix for the rectangular section.
A newly added video: 4-Video for Iy for a rectangular section.