Polar Moment of Inertia of a Circle
Polar Moment of Inertia of a Circle formulas |
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\(J_{z} \;=\; \dfrac{ \pi \cdot r^4 }{ 2 } \) \( J_{z1} \;=\; \dfrac{ 5 \cdot \pi \cdot r^4 }{ 2 } \) |
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Symbol | English | Metric |
\( J \) = torsional constant | \( in^4 \) | \( mm^4 \) |
\( \pi \) = Pi | \(3.141 592 653 ...\) | \(3.141 592 653 ...\) |
\( r \) = radius | \( in \) | \( mm \) |