Elastic Section Modulus of a Thin Wall Circle formula |
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\( S \;=\; \dfrac{ 2 \cdot \pi \cdot r \cdot t }{ 3 }\) (Elastic Section Modulus of a Thin Wall Circle) \( r \;=\; \dfrac{ S \cdot 3 }{ 2 \cdot \pi \cdot t }\) \( t \;=\; \dfrac{ S \cdot 3 }{ 2 \cdot \pi \cdot r }\) |
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| Symbol | English | Metric |
| \( S \) = elastic section modulus | \( in^3 \) | \(mm^3\) |
| \( \pi \) = Pi | \(3.141 592 653 ...\) | \(3.141 592 653 ...\) |
| \( r \) = inside radius | \( in \) | \( mm \) |
| \( t \) = thickness | \( in \) | \( mm \) |
