Answer to Question #160652 in Mechanical Engineering for Johan Nieuwoudt

Question

Tensile Tests on Mild Steel

Calculate Factor of Safety if Yield stress is 550mpa, Ultimate stress is 950mpa and the Design stress is 325mpa

Answer 1

Factor of safety can be defined as the ratio of ultimate stress to the design stress. It is a constant factor that is considered for designing of machine components or structure beyond its working strength.

$F.O.S=\frac{Ultimate}{Design}=\frac{950}{325}\approx2.92$