Torsion Constant for Circle Cross-section Formula |
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\( J \;=\; \dfrac{ \pi \cdot d^4 }{ 32 }\) (Torsion Constant for Circle Cross-section) \( d \;=\; \sqrt[4]{ \dfrac{ 32 \cdot J }{ \pi } }\) |
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| Symbol | English | Metric |
| \( J \) (Greek symbol alpha) = Torsion Constant | \(in^4\) | \(mm^4\) |
| \( \pi \) = Pi | \(3.141 592 653 ...\) | \(3.141 592 653 ...\) |
| \( d \) = Diameter of the Circle | \(in\) | \(mm\) |
