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Failure Criteria
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Maximum shear stress criterion (Tresca's Criterion):
This criterion is often used to predect the yielding of ductile material |
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Maximum distorsion energy (Von Mises Criterion):
This criterion is used to predict the yielding of ductile material. It can also give a reasonable estimation of fatigue failure. |
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For plane stresses, |
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Maximum stress criterion (Rankine Criterion):
This criterion is used to predict the yielding of crittle material. It states that failure occurs when the maximum principal stress reaches the yield stress of the material.
compression  tension
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