Yield-limited leak-before-break thickness (source code)

= Yield-limited leak-before-break thickness
{title2=$t_{\max}=K_{IC}^2/(\pi Y^2\sigma_y^2)$}

A conservative material-screening upper bound obtained by requiring wall penetration before fast fracture even at a stated yield-limited <stress>. Substituting a thickness-dependent pressure <stress> instead yields a different fixed-pressure inequality; the two comparisons must not be conflated.