The Graphics Section Moment of Inertia of an area Rotation Axis Calculation Diagram Method-Moment of Inertia of an area Circle

From the graphics section moment of inertia rotation axis formula can make a geometric figure (Moment of inertia circle), and thus may calculate inertia axis rotation calculation problem, called the graphics section moment of inertia rotation axis calculation diagram method. This method can directly answer some questions to be very difficult answered by analytic method. Moment of inertia circle and the stress circle is in the form of very close, for the mastery of stress circle to compute, grasp the moment of inertia circle is very convenient.