Contact: Hasan Ozer (hozer@asu.edu), Imad L. Al-Qadi (alqadi@illinois.edu), Carlos Armando Duarte (caduarte@illinois.edu)

Researchers: Masih Beheshti (beheshti@asu.edu)

Sponsor: Federal Aviation Administration (FAA)

Timeline: July 2025 – July 2028

Abstract:

The objective of this study is to develop a comprehensive mechanistic-empirical (M-E) design framework and algorithms to accurately predict reflective cracking severity and density. This will involve advanced 3-D fracture simulations utilizing the Generalized Finite Element Method (GFEM) to capture crack propagation under combined thermal and aircraft loading, accounting for complex factors like AC-PCC debonding and joint load transfer efficiency.

This study uses the numerical framework established in the first phase for the development and validation of transfer functions, derived from these mechanistic calculations and calibrated using extensive airport pavement performance databases, including the FAA’s full-scale test sections. These functions will mathematically express distress severity and density, with coefficients statistically determined to align with field observations. The ultimate goal is to integrate these novel numerical cracking prediction tools, transfer functions, and models for traffic and environmental inputs into a future version of the FAARFIELD design program, providing a robust and computationally efficient solution for designing airfield AC overlay pavement systems.