A dynamic finite element (FE) model was developed under this study that incorporates subgrade damping to improve the reliability of backcalculation. The dynamic FE model was incorporated in a new tool called PULSE_FE to accelerate the computational runtime and improve efficiency. Dynamic backcalculation has been successfully applied to a Construction Cycle-9 flexible test item, and a parametric study has identified key FWD parameters for dynamic backcalculation. Furthermore, an optimization framework was established to streamline the dynamic backcalculation process, seamlessly integrating modeling, FE analysis, and multiple optimizers. Constrained optimization was employed to enhance the practicality of solutions. Additionally, a user-friendly graphical user interface (GUI) program for BAKFAA Dynamic Backcalculation (DynaBAKFAA) was designed to simplify the tasks from mesh generation to dynamic backcalculation.

The following frameworks are required to be installed to run DynaBAKFAA:

.Net Runtime 3.1.32
MATLAB Runtime R2023b