CavityNucleationDamageRate

Source: models/solid_mechanics/traction_separation_law/CavityNucleationDamageRate.py

The part of \(\dot f\) carried by newly nucleated cavities,

\[ \dot{f}_\text{nucleation} = \frac{f}{N} \dot{N}. \]

New cavities arrive at the current mean size, so the area fraction grows in proportion to the density.

Split from CavityGrowthDamageRate so that a nucleation-free variant of the model is assembled by omitting leaves rather than by toggling an option: drop this model, the CavityNucleationRate, and the ScalarLinearCombination that sums the two contributions, hold \(N\) constant, and the remaining composition is the pure cavity-growth model.

Inputs

cavity_fraction — input · Scalar · required

Physical cavitated area fraction

cavity_density — input · Scalar · required

Cavity number density per unit boundary area

cavity_density_rate — input · Scalar · required

Rate of change of the cavity number density

Outputs

cavity_fraction_nucleation_rate — output · Scalar · required

Area fraction rate contributed by newly nucleated cavities