Hoop Stress Thick-walled Section (External Pressure Only) Formula |
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| \( \sigma_h \;=\; \dfrac{ - p_e \cdot r_e^2 }{ r_e^2 - r_i^2 } \cdot \left( 1 + \dfrac{ r_i^2 }{ r^2} \right) \) | ||
| Symbol | English | Metric |
| \( \sigma_h \) (Greek symbol sigma) = Hoop Stress | \(lbf\;/\;in^2\) | \(Pa\) |
| \( p_e \) = External Pressure | \(lbf\;/\;in^2\) | \(Pa\) |
| \( r_e \) = External Radius | \( in \) | \( mm \) |
| \( r_i \) = Internal Radius | \( in \) | \(mm \) |
| \( r \) = Radius to Point of Intrest | \( in \) | \(mm\) |
