Failure Criteria
Failure criteria normally predict the failure of a material subjected
to multi-axial state of stresses. The Factor of Safety Wizard
assesses the safety of the model based on a selected failure criterion.
A material may behave in a ductile or brittle manner depending on the
temperature, rate of loading, chemical environment, and the formation
process. No single failure criterion is best applicable to a material
under all conditions. You should use all the information available to
you about the material to select a failure criterion. You can try more
than one stress criterion to assess the safety of the model.
The software supports the following four failure criteria:
For models with composite shells, see Composite
Failure Criteria