Hoop Stress Thick-walled Section (Internal Pressure Only)

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
\( \sigma_h \) (Greek symbol sigma) = Hoop Stress	\(lbf\;/\;in^2\)	\(Pa\)
\( p_e \) = External Pressure	\(lbf\;/\;in^2\)	\(Pa\)
\( r \) = Radius to Point of Intrest	\( in \)	\( m m\)
\( r_e \) = External Radius	\( in \)	\( mm \)
\( r_i \) = Internal Radius	\( in \)	\( mm \)