Table of Contents
- 1 How does moment of inertia of a body differ from the moment of inertia of an area?
- 2 What is the difference between polar moment of inertia and second moment of area?
- 3 What is the difference between inertia moment of inertia and polar moment of inertia?
- 4 What is the difference between torsion and torque?
- 5 What is polar mass moment of inertia?
How does moment of inertia of a body differ from the moment of inertia of an area?
The mass moment of inertia is used as a rotational analog of mass, and the area moment of inertia is used mainly for beam equations. The other difference is the units used in both the moments of inertia.
What is the difference between polar moment of inertia and second moment of area?
Second moment of area can be either planar or polar. Polar moment of inertia describes an object’s resistance to torque, or torsion, and is used only for cylindrical objects.
What is the difference between inertia moment of inertia and polar moment of inertia?
Polar Moment of Inertia. The main difference between moment of inertia and polar moment of inertia is that the moment of inertia measures how an object resists angular acceleration, whereas the polar moment of inertia measures how an object resists torsion.
What is the difference between polar moment of inertia and mass moment of inertia?
If the polar moment of inertia is of higher magnitude then the torsional resistance of the object will also be greater….Differences Between Moment Of Inertia and Polar Moment of Inertia.
| Moment Of Inertia | Polar Moment of Inertia |
|---|---|
| Depends on the mass of the body. | Depends on the geometry of the body. |
What is the meaning of polar moment of inertia?
Simply put, the polar moment of inertia is a shaft or beam’s resistance to being distorted by torsion, as a function of its shape. The greater the magnitude of the polar moment of inertia, the greater the torsional resistance of the object.
What is the difference between torsion and torque?
Torque and torsion are both related to turning effects experienced by a body. The main difference between torque and torsion is that torque describes something that is capable of producing an angular acceleration, whereas torsion describes the twist formed in a body due to a torque.