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I y = b 3 h / 12 (3b) Solid Circular Cross Section

The Area Moment of Ineria for a rectangular section can be calculated as I y = a 4 / 12 (2b) Solid Rectangular Cross Section The Area Moment of Inertia for a solid square section can be calculated as Area Moment of Inertia for typical Cross Sections II.X = the perpendicular distance from axis y to the element dA (m, mm, inches) Area Moment of Inertia for typical Cross Sections I I y = Area Moment of Inertia related to the y axis ( m 4, mm 4, inches 4) The Moment of Inertia for bending around the y axis can be expressed as Y = the perpendicular distance from axis x to the element dA (m, mm, inches )ĭA = an elemental area ( m 2, mm 2, inches 2) I x = Area Moment of Inertia related to the x axis ( m 4, mm 4, inches 4) (9240 cm 4) 10 4 = 9.24 10 7 mm 4 Area Moment of Inertia (Moment of Inertia for an Area or Second Moment of Area)įor bending around the x axis can be expressed as Area Moment of Inertia - Imperial unitsĮxample - Convert between Area Moment of Inertia Unitsĩ240 cm 4 can be converted to mm 4 by multiplying with 10 4 The word "MOI" stands for Moment of Inertia. Solve for the moment of inertia using the transfer formula.