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