Hollow circular section
This is a hollow circular section.
Because of the simple geometry, it's easy to verify some of the results obtained from SectionExpert 2010,
with the aid of simple formulas.
This thin-walled section has an external diameter equal to 60 units and an internal diameter equal to 56 units.
You can download the full report (Word 97 or later document)
produced by SectionExpert 2010.
In the following table only a small portion of the calculated properties are presented.
Selected results obtained from SectionExpert 2010 for this thin-walled section
| Property |
Description |
Value |
| A | Cross-sectional area | 363.7590522 |
| Ycg | Y-Coordinate of center of gravity | 6.211600471E-15 |
| Zcg | Z-Coordinate of center of gravity | -1.44546678E-15 |
| Ysc | Y-Coordinate of shear center | -3.68066015E-15 |
| Zsc | Z-Coordinate of shear center | -1.97398606E-14 |
| Asy | Conventional shear area along Y-axis | 182.236833 |
| Asz | Conventional shear area along Z-axis | 182.2368665 |
| Iy | Moment of inertia about user Y-axis | 152862.9173 |
| Iz | Moment of inertia about user Z-axis | 152862.9173 |
| Iyz | Product of inertia (user axes) | -2.2509993869E-11 |
| Iy,cg | Moment of inertia about centroidal Y-axis | 152862.9173 |
| Iz,cg | Moment of inertia about centroidal Z-axis | 152862.9173 |
| Iyz,cg | Polar moment of inertia | 305725.8346 |
| a | Angle of principal inertia axes (degrees) | 0 |
| Iu | Maximum principal moment of inertia | 152862.9173 |
| Iv | Minimum principal moment of inertia | 152862.9173 |
| Wu,max | Maximum resisting moment about U principal axis | 5095.430577 |
| Wu,min | Minimum resisting moment about U principal axis | 5095.430577 |
| Wv,max | Maximum resisting moment about V principal axis | 5095.430577 |
| Wv,min | Minimum resisting moment about V principal axis | 5095.430577 |
| It | Torsional moment of inertia (St. Venant) | 305725.8346 |
| Gamma | Warping constant with respect to shear center | -5.4569682107E-12 |