PROPERTIES OF PLANE SECTIONS
The following symbols will be used:
Area Coordinates of centroid of section in coordinate system. Moment of inertia about an axis through the centroid parallel to the axes. Radius of gyration of the section with respect to the centroidal axes parallel to the axes. Product of inertia with respect to the centroidal axes parallel to the axes. Moment of inertia with respect to the axes shown. Radius of gyration of the section with respect to the axes shown. Product of inertia with respect to the axes shown. (same as ) Polar moment of inertia about an axis passing through the centroid. Radius of gyration of the section about the polar axis passing through the centroid. marks the centroid.
PROPERTIES OF HOMOGENEOUS BODIES
The following symbols will be used:
Mass density Mass Coordinates of centroid in coordinate system. Moment of inertia about an axis through the centroid parallel to the axes shown. Radius of gyration of the body with respect to the centroidal axes parallel to the axes shown. , etc. = Product of inertia with respect to the centroidal axes parallel to the axes shown. Moment of inertia with respect to the axes shown. Radius of gyration of the body with respect to the axes shown. , etc. Product of inertia with respect to the axes shown. Moments of inertia and radii of gyration with respect to special axes shown. marks the centroid
