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IEVref: | 113-03-29 | ID: | |

Language: | en | Status: Standard | |

Term: | second axial moment of area | ||

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Symbol: | I_{a}
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Definition: | for a plane surface S and a specified axis in the plane of the surface, additive scalar quantity equal to the integral ${I}_{\text{a}}={\displaystyle {\int}_{\text{S}}{R}^{2}}\mathrm{d}A$, where R is the distance between a surface element with area dA and the axisNOTE 1 The second axial moment of area is sometimes given the wrong name "moment of inertia" but should not to be confused with the quantity "moment of inertia". NOTE 2 The coherent SI unit of second axial moment of area is metre to the power four, m | ||

Publication date: | 2011-04 | ||

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Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 113-03-29en.gif | ||

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NOTE 1 The second axial moment of area is sometimes given the wrong name "moment of inertia" but should not to be confused with the quantity "moment of inertia".

NOTE 2 The coherent SI unit of second axial moment of area is metre to the power four, m^{4}.