Airfield Pavement Response Due to Heavy Aircraft Takeoff: Advanced Modeling Comparing Single-Tire and Dual-Tandem Gear

The normal and shear strains of a typical airfield pavement subjected to single and dual-in-tandem configuration of Airbus A380 were compared during takeoff. The contributions of this paper are threefold. First, a detailed description of the model generation and the process for including the variables usually omitted in typical pavement analysis are provided. These variables include variation of loading with time, nonlinear base materials, friction interaction between pavement layers, viscoelastic asphalt concrete (AC) layers, and three-dimensional nonuniform contact stresses. Second, the responses studied were not limited to the tensile strains at the bottom of AC layers and the maximum compressive strain on top of the subgrade, but also included the shear strains in each layer and surface tensile strain. Third, the comparison was not limited to magnitude as the variation of critical strains along the moving direction and its perpendicular was also considered, and the tire interaction in the dual-in-tandem configuration was described.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 15p
  • Monograph Title: 2014 FAA Worldwide Airport Technology Transfer Conference Proceedings: Innovations in Airport Safety and Pavement Technology

Subject/Index Terms

Filing Info

  • Accession Number: 01538225
  • Record Type: Publication
  • Report/Paper Numbers: P10021
  • Files: TRIS, ATRI, USDOT
  • Created Date: Sep 9 2014 6:25AM