Fig. 4: Comparison of computational expense.

Projected computational costs for predicting the evolution of microstructurally small crack using the interleaved PBDL framework (with two different cumulative uncertainty thresholds, T1 and T2), in comparison to purely physics-based simulations and a deep-learning-only approach. The inset shows actual data points from a specific microstructural instantiation, which are used to extrapolate to a final crack size that would be detectable by ultrasonic testing.