Yield Criteria
If the stress exceeds a critical value, as was mentioned above, the material will undergo plastic, or irreversible, deformation. This critical stress can be tensile or compressive. The Tresca and the von Mises criteria are commonly used to determine whether a material has yielded. However, these criteria have proved inadequate for a large range of materials and several other yield criteria are in widespread use.
Read more about this topic: Plasticity (physics)
Famous quotes containing the words yield and/or criteria:
“Alas, why would you heap this care on me?
I am unfit for state and majesty.
I do beseech you take it not amiss,
I cannot nor I will not yield to you.”
—William Shakespeare (1564–1616)
“We should have learnt by now that laws and court decisions can only point the way. They can establish criteria of right and wrong. And they can provide a basis for rooting out the evils of bigotry and racism. But they cannot wipe away centuries of oppression and injustice—however much we might desire it.”
—Hubert H. Humphrey (1911–1978)