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:
“Yet cease your ire, you angry stars of heaven!
Wind, rain, and thunder, remember earthly man
Is but a substance that must yield to you.”
—William Shakespeare (1564–1616)
“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)
“Now, since our condition accommodates things to itself, and transforms them according to itself, we no longer know things in their reality; for nothing comes to us that is not altered and falsified by our Senses. When the compass, the square, and the rule are untrue, all the calculations drawn from them, all the buildings erected by their measure, are of necessity also defective and out of plumb. The uncertainty of our senses renders uncertain everything that they produce.”
—Michel de Montaigne (1533–1592)