Fatigue Crack Growth Material Models

The material models in this section are available as beta features under Crack Growth Laws in the Engineering Data module. These material models support the SMART Method for Crack-Growth Simulation.

Be aware of the following when using these material models:

  • They apply to static structural analyses only.

  • Only one material model for fatigue crack growth can be used in a model.

Paris' Law

f(T) and/or f(R)

This material model implements Paris' Law for fatigue crack growth.

Tabular Fatigue Law

f(T) and/or f(R)

This material model implements the Tabular Fatigue Law for fatigue crack growth.

NASGRO V3

f(T)

This material model implements version 3 of the NASGRO equation for fatigue crack growth. NASGRO V3 cannot be used with crack-closure functions.

NASGRO V4

f(T)

This material model implements version 4 of the NASGRO equation for fatigue crack growth. NASGRO V4 cannot be used with crack-closure functions.

Walker Equation

f(T)

This material model implements the Walker equation for fatigue crack growth. Walker Equation cannot be used with crack-closure functions.

Forman Equation

f(T)

This material model implements the Forman equation for fatigue crack growth. Forman Equation cannot be used with crack-closure functions.

Additional Information about Fatigue Crack Growth