Yield & Ultimate Calculations
For ductile materials (e.g. most metals), it is often required that the factor of safety be checked against both yield and ultimate strengths. The yield calculation will determine the safety factor until the part starts to plastically deform. The ultimate calculation will determine the safety factor until failure. On brittle materials these values are often so close as to be indistinguishable, so is it usually acceptable to only calculate the ultimate safety factor.
Read more about this topic: Factor Of Safety
Famous quotes containing the words yield, ultimate and/or calculations:
“I believe that there is a subtle magnetism in Nature, which, if we unconsciously yield to it, will direct us aright. It is not indifferent to us which way we walk.”
—Henry David Thoreau (1817–1862)
“Ah, Marilyn, Hollywood’s Joan of Arc, our Ultimate Sacrificial Lamb. Well, let me tell you, she was mean, terribly mean. The meanest woman I have ever known in this town. I am appalled by this Marilyn Monroe cult. Perhaps it’s getting to be an act of courage to say the truth about her. Well, let me be courageous. I have never met anyone as utterly mean as Marilyn Monroe. Nor as utterly fabulous on the screen, and that includes Garbo.”
—Billy Wilder (b. 1906)
“The vulgar call good fortune that which really is produced by the calculations of genius.”
—Ralph Waldo Emerson (1803–1882)