Longitudinal Stress Thin-wall Section Formula |
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\( \sigma_l \;=\; \dfrac{ p \cdot r }{ 2 \cdot t }\) (Longitudinal Stress Thin-wall Section) \( p \;=\; \dfrac{ \sigma_l \cdot 2 \cdot t }{ r }\) \( t \;=\; \dfrac{ p \cdot r }{ \sigma_l \cdot 2 }\) \( r \;=\; \dfrac{ \sigma_l \cdot 2 \cdot t }{ p }\) |
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| Symbol | English | Metric |
| \( \sigma_l \) (Greek symbol sigma) = longitudinal stress | \(lbf\;/\;in^2\) | \( Pa \) |
| \( p \) = internal pressure | \(lbf\;/\;in^2\) | \( Pa \) |
| \( r \) = radius to point of intrest | \( in \) | \( mm \) |
| \( t \) (Greek symbol sigma) = wall thickness | \( in \) | \( mm \) |
