Sunday, April 12, 2020 , , , , , , , , , , ,

Differentiate Mass Moment of Inertia vs Area Moment of Inertia

Inertia: Tendency of a body remain unchanged is Inertia.

Moment of Inertia: It is the measure of resistance of a body to change its rotation.

Mass Moment Of Inertia: Under torque characterizes the angular acceleration undergone by the solid is known as Mass Moment Of Inertia.
[It depends upon the body mass and the location of the mass.
It is proportional to the distance from the mass i.e. Greater the distance bigger the volume of Mass Moment Of Inertia.]

Mass Moment of Inertia = mk2      [where m=mass of a body, k= distance from the center of gravity of that mass.]
Unit: kg-m2


Area Moment Of Inertia: It is for two dimensional shape plane.it characterize the deflection under loading.

[It is used for predicting resistance of a beam to bending and deflection in a cross-sectional area.]
Area Moment Of Inertia find out by Ixx & Iyy

Unit: m4