Tresca and Von Mises Yield Criteria

Ductile materials can yield when they are loaded beyond a safe stress level. Engineers use yield criteria to check whether structural elements and machine parts can handle the expected load without permanent deformation. The yield point is first found with a tensile test, which measures how the material responds to uniaxial ...

Structural elements and machine parts made from ductile materials are designed to resist yielding under an expected load.

The yield point is identified through a tensile test on a similar material under uniaxial stress. However, predicting failure is not straightforward when the stress state changes to the plane stress, resulting in biaxi...