Margin of Safety for a Failure Load

Written by Jerry Ratzlaff on . Posted in Safety Engineering

Margin of safety for a failure load, abbreviated as MS, a dimensionless number, is the ratio of the system's structural capacity to the requirements or how much excess capacity.

 

Margin of Safety for a Failure Load Formula

\(\large{ MS = \frac{ FL }{ DL \; DSF }  }\) (measure of required verification)
\(\large{ MS = \frac{ FL }{ DL } \; -1  }\)  (measure of structural capacity)

Where:

\(\large{ MS }\) = margin of safety for a failure load

\(\large{ DL }\) = design load

\(\large{ DSF }\) = design safety factor

\(\large{ FS }\) = factor of safety

\(\large{ FL }\) = failure load

 

Tags: Equations for Safety