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