Radial Displacement Thin-wall Section (Open Ended)

Radial Displacement Thin-wall Section (Open Ended) Formula
$\Delta_r \;=\; \dfrac{ p \cdot r^2 }{ \lambda \cdot t }$
Symbol	English	Metric
$\Delta_r$ = Radius Change	$in$	$mm$
$p$ = Pressure Under Consideration	$lbf\;/\;in^2$	$Pa$
$r$ = Radius to Point of Intrest	$in$	$mm$
$\lambda$ (Greek symbol lambda) = Elastic Modulus	$lbf\;/\;in^2$	$Pa$
$t$ = Wall Thickness	$in$	$mm$