Longitudinal Stress Thick-walled Section (Internal Pressure Only)

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Longitudinal Stress Thick-walled Section (Internal Pressure Only) Formula

\(\large{ \sigma_l = \frac{ p_i \; r_i^2 }{ r_e^2 \;-\; r_i^2 }  }\) 
Symbol English Metric
\(\large{ \sigma_l }\)  (Greek symbol sigma) = longitudinal stress \(\large{ \frac{lbf}{in^2} }\)  \(\large{ Pa }\)
\(\large{ p }\) = internal pressure  \(\large{ \frac{lbf}{in^2} }\)  \(\large{ Pa }\)
\(\large{ r_e }\) = external radius  \(\large{ in }\)  \(\large{ mm }\)
\(\large{ r_i }\) = internal radius  \(\large{ in }\)  \(\large{ mm }\)

 

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Tags: Strain and Stress Equations Pressure Vessel Equations