United States Department of Transportation
i
Machine Learning Solutions for Top-Down Cracking Design of Airport Rigid Pavement
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2022-11-01
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[PDF-2.23 MB]
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Edition:Final Report
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Abstract:The Federal Aviation Administration (FAA) rigid pavement design process is based on bottom-up cracking failure resulting from tensile stress at the bottom of a flat slab under aircraft loads. The FAA has a long-term goal to add top-down cracking failure mode to the FAA Rigid and Flexible Iterative Elastic Layered Design (FAARFIELD) program. The existing design procedure is not suitable to support design for the top-down cracking failure mode. Critical stresses for rigid pavement design can be calculated by Finite Element Analysis – FAA (FEAFAA), the FAA three-dimensional finite element (3D-FE) program. However, direct use of 3D-FE methods in design software is typically far more time-consuming than is acceptable for design procedures.
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