Yield Strength

Written by Matt Milbury on . Posted in Classical Mechanics

yield strength 1Yield strength, abbreviated as \(\sigma\) (Greek symbol sigma), also called yield stress, is the minimum stress that leads to permanent deformation of the material.


Yield strength formula

\(\large{ \sigma = \frac{F}{A_c} }\) 
Symbol English Metric
\(\large{ \sigma }\)  (Greek symbol sigma) = yield strength \(\large{\frac{lbf}{in^2}}\)   \(\large{Pa}\)
\(\large{ A_c }\) = area cross-section \(\large{ in^2 }\) \(\large{ mm^2 }\)
\(\large{ F }\) = force \(\large{ lbf }\) \(\large{ N }\)


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