| Applies To | |||
| Product(s): | MICROSTATION | ||
| Version(s): | 08.05.02.27 | ||
| Environment: | N\A | ||
| Area: | Measure | ||
| Subarea: | N\A | ||
| Original Author: | Bentley Technical Support Group | ||
Problem
How is the Polar Moment of Inertia calculated about the Z axis for the
Measure Area tool?
Product: MicroStation V8 2004 Edition
Version: 08.05.02.27
Area: Dimension/Measure
Solution
The Polar Moment of Inertia or Torsional Stress is calculated by adding the Moment of Inertia for the X and Y axis' due to the Per perdicular Axis Thorem.
Jz=Ix+Iy
More information can be located at http://www.efunda.com/math/areas/MomentOfInertia.cfm?Moment=xc