Properties of Solids

Properties of Half Cylindrical Shell
Centroid from yz-plane C_x	Centroid from zx-plane C_y	Centroid from xy-plane C_z


Surface Area Lateral Area + Base Area	Volume	Mass


Mass Moment of Inertia about the x axis I_xx	Mass Moment of Inertia about the y axis I_yy	Mass Moment of Inertia about the z axis I_zz


Radius of Gyration about the x axis k_xx	Radius of Gyration about the y axis k_yy	Radius of Gyration about the z axis k_zz


Moment of Inertia about the centroidal x axis ( x_c ) I_XcXc	Moment of Inertia about the centroidal y axis ( y_c ) I_YcYc	Moment of Inertia about the centroidal z axis ( z_c ) I_ZcZc


Radius of Gyration about the centroidal x axis ( x_c ) k_XcXc	Radius of Gyration about the centroidal y axis ( y_c ) k_YcYc	Radius of Gyration about the centroidal z axis ( z_c ) k_ZcZc


NOTE: AREA: Use the lateral surface area formula for the Circular Cylinder. If the cylinder is very thin this lateral surface area should be sufficient. If it is not, calculate the surface area of the Circular Cylinder (lateral + base) using the outer radius of the base circle. Then add the lateral surface area of a Circular Cylinder minus the area of the base (lateral - base) using the inner radius. Half of this total value plus the difference between r_outer and r_inner multiplied by 2L is the surface area. VOLUME: Use the Volume formula for a Circular Cylinder. Subtract the volume calculated by using the inner radius from the volume calculated by using the outer radius and divide the result by two. is the mass of the entire body. is the density of the body. is the outer radius of the body. All of the above results assume that the body has constant density. For none constant density see the general integral forms of Mass, Mass Moment of Inertia, and Mass Radius of Gyration.


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