Second Moment of Area in Deflection Formulas

Second Moment of Area is a measure of the ’efficiency’ of a shape to resist bending caused by loading. The second moment of area is a measure of a shape’s resistance to change. And is denoted by I_A. Second Moment of Area is usually measured using the Meter⁴ for Second Moment of Area. Note that the value of Second Moment of Area is always positive.

Deflection formulas that make use of Second Moment of Area

fxDeflection due to Prestressing for Parabolic TendonGo

fxUplift Thrust when Deflection due to Prestressing for Parabolic TendonGo

fxYoung's Modulus given Deflection due to Prestressing for Parabolic TendonGo

FAQ

What is the Second Moment of Area?

Second Moment of Area is a measure of the ’efficiency’ of a shape to resist bending caused by loading. The second moment of area is a measure of a shape’s resistance to change. Second Moment of Area is usually measured using the Meter⁴ for Second Moment of Area. Note that the value of Second Moment of Area is always positive.

Can the Second Moment of Area be negative?

No, the Second Moment of Area, measured in Second Moment of Area cannot be negative.

What unit is used to measure Second Moment of Area?

Second Moment of Area is usually measured using the Meter⁴[m⁴] for Second Moment of Area. Centimeter⁴[m⁴], Millimeter⁴[m⁴] are the few other units in which Second Moment of Area can be measured.

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