Domain analysis for airfield pavement: Moving forward from point responses

J. A. Hernandez, A. Gamez, I. L. Al-Qadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Current design methodologies for airfield pavement design are based on two failure mechanisms: bottom-up fatigue cracking and permanent deformation in the subgrade. Both mechanisms are based on strain at specific points in the pavement structure (tensile strain at the bottom of the Asphalt Concrete (AC) and vertical strain on top of the subgrade, respectively). However, point responses do not capture the multiaxial nature of stresses and strains. This paper uses a novel methodology called Domain Analysis that not only considers the three-dimensional (3-D) stress/strain state, but also relates regions in the pavement with typical distresses. In addition, various loading configurations are compared using a single scalar resulting from the Domain Analysis. The method uses outputs from finite element analysis and principal stresses/strains to isolate shear and mean states. The capabilities of Domain Analysis are demonstrated by analyzing a section built at the National Airport Pavement Test Facility subjected to a single gear loading of Airbus A-380, three temperatures, two tire-inflation pressures, and two tire speeds. Pavement response are calculated using an advanced finite element model that accounts for factors such as viscoelastic AC, 3-D nonuniform contact stresses and interaction between pavement layers.

Original languageEnglish (US)
Title of host publicationBearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
EditorsAndreas Loizos, Imad L. Al-Qadi, A. Tom Scarpas
PublisherCRC Press/Balkema
Pages1693-1700
Number of pages8
ISBN (Print)9781138295957
DOIs
StatePublished - Jan 1 2017
Event10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017 - Athens, Greece
Duration: Jun 28 2017Jun 30 2017

Publication series

NameBearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017

Other

Other10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
CountryGreece
CityAthens
Period6/28/176/30/17

ASJC Scopus subject areas

  • Civil and Structural Engineering

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  • Cite this

    Hernandez, J. A., Gamez, A., & Al-Qadi, I. L. (2017). Domain analysis for airfield pavement: Moving forward from point responses. In A. Loizos, I. L. Al-Qadi, & A. T. Scarpas (Eds.), Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017 (pp. 1693-1700). (Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017). CRC Press/Balkema. https://doi.org/10.1201/9781315100333-242