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:
“Whether, if you yield not to your father’s choice,
You can endure the livery of a nun,
For aye to be in shady cloister mewed,
To live a barren sister all your life,
Chanting faint hymns to the cold fruitless moon.
Thrice blessed they that master so their blood
To undergo such maiden pilgrimage.”
—William Shakespeare (1564–1616)
“There are in every generation those who shrink from the ultimate sacrifice, but there are in every generation those who make it with joy and laughter and these are the salt of the generations.”
—Patrick Henry Pearse (1879–1916)
“Nowhere are our calculations more frequently upset than in war.”
—Titus Livius (Livy)