Yield strength
= Yield strength
{title2=$\sigma_y$}
A stress characterizing the onset of permanent plastic deformation under a specified test convention. A proof-stress definition is often used when there is no sharp yield point.
= Yield strength
{title2=$\sigma_y$}
A stress characterizing the onset of permanent plastic deformation under a specified test convention. A proof-stress definition is often used when there is no sharp yield point.