Instrumented flexible pavement responses under aircraft loading

Bazi, Gabriel; Mansour, Elise; Sebaaly, Peter E.; Ji, Richard; Garg, Navneet

doi:10.1080/10298436.2019.1671589

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…Numerical simulation makes it possible to investigate the characteristics of dynamic responses of asphalt pavement under vehicle loading in simple or multiple service environments [18][19][20][21][22], which can help to present the health status of asphalt pavement structure and to further predict the residual service life [23][24][25][26]. Sun et al [3] constructed a 3D FEM model for the asphalt pavement under multi-field coupling, which included hydromechanical coupling and thermal hydromechanical coupling, and the dynamic response characteristics of saturated structure were numerically analyzed.…”

Section: Structural Dynamic Response Analysismentioning

confidence: 99%

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Wang,

Wang

2024

Materials

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Asphalt pavement, which is mainly made up of the asphalt mixture, exhibits complicated mechanical behaviors under the combined effects of moving vehicle loads and external service environments. Multi-scale numerical simulation can well characterize behaviors of asphalt materials and asphalt pavement, and the essential research progress is systematically summarized from an entire view. This paper reviews extensive research works concerning aspects of the design, characterization, and prediction of performance for asphalt materials and asphalt pavement based on multi-scale numerical simulation. Firstly, full-scale performance modeling on asphalt pavement is discussed from aspects of structural dynamic response, structural and material evaluation, and wheel–pavement interaction. The correlation between asphalt material properties and pavement performance is also analyzed, and so is the hydroplaning phenomenon. Macro- and mesoscale simulations on the mechanical property characterization of the asphalt mixture and its components are then investigated, while virtual proportion design for the asphalt mixture is introduced. Features of two-dimensional and three-dimensional microscale modeling on the asphalt mixture are summarized, followed by molecular dynamics simulation on asphalt binders, aggregates, and their interface, while nanoscale behavior modeling on asphalt binders is presented. Finally, aspects that need more attention concerning this study’s topic are discussed, and several suggestions for future investigations are also presented.

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Section: Structural Dynamic Response Analysismentioning

confidence: 99%

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Wang,

Wang

2024

Materials

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“…Recording the strain measurement within the pavement over time makes it possible to examine the mechanical response under dynamic loads and ultimately verify the claims for the structural performance of various pavement materials. Strain gauges have been successfully applied as a monitoring set-up in the past, with few definitive studies from the National Center for Asphalt Technology (NCAT), Florida Department of Transportation, and others (17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27).…”

Section: Instrumentation and Remote Monitoring Systemmentioning

confidence: 99%

First-Year Field Performance of Epoxy-Modified Asphalt

Jing

Apostolidis

Liu

et al. 2022

Transportation Research Record: Journal of the Transportation R

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Pavement materials containing epoxy-asphalt are mainly used to enhance the fatigue cracking resistance of surfacing layers on bridges. These materials have also been proposed for roadways, but limited field data are available. In this research, a fully instrumented epoxy-modified asphalt surfacing layer was applied to measure strain responses in service conditions. Results over the first-year monitoring period indicated that the epoxy-modified asphalt behaves fundamentally similarly to a reference one with an asphalt mix of the same aggregate gradation. The epoxy-modified asphalt demonstrated the lowest transverse compressive strains at decreased temperatures, reflecting the potentially high material resistance against thermal cracking. After the summer period, the modified material showed lower tensile strains than the reference mix compared with the previous time period. Such an attribute could indicate the ongoing curing-induced stiffening of epoxy-modified asphalt at high temperatures during summer. The longitudinal and transverse strain measurements had inverse tendencies at all temperatures. Finally, the mechanical response of the studied materials after the summer has been examined using a classical fatigue cracking model and following a life cycle assessment methodology, and preliminary findings support the use of epoxy-asphalt for sustainable pavements.

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“…(3) The aircraft load is simplified to a concentrated force that propagates to the bottom plate of the pavement at a 45 • concrete punching tangent angle; thus, a load-spreading area is formed [14]. After solving the problem of aircraft load application through numerical simulations, the research of most scholars focuses on several areas, such as parking lots, airport runways, aircraft carriers, dynamization, and mechanization of system equipment subjected to pressure waves [15][16][17]. Such studies are implemented to analyze the airport runway material, dynamic response, and stability under aircraft load [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Influencing Factors of Safety and Stability of Tunnel Structure under Airport Runway

Yang

Wei

et al. 2022

Applied Sciences

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A six-degree-of-freedom mathematical model and mechanical balance equation of a “five-point-contact” aircraft are established in this study. The model and equation are used to investigate the safety and stability of a tunnel structure under the runway of an airport, particularly when aircraft taxi or move on the runway. ABAQUS is used to construct a three-dimensional finite element model of the cooperative deformation of the airport runway–soil–tunnel structure. The analysis focuses on the response and evolution of structural safety mechanical indices from the perspective of three influencing factors: type of aircraft, road surface, and burial depth. The results show that the distribution position of the main landing gear wheel is more concentrated using the dynamic load equation of different aircraft. A rigid pavement is not easily deformed when subjected to aircraft loads, whereas a flexible pavement has an excellent attenuation effect on diffusing forces. The shear stresses on the upper and lower arches of the tunnel structure differ depending on the pavement material. The deformation of the arches under shear stress is more intense than that of other parts. With an increase in burial depth, the tunnel structure withstanding the aircraft load disturbance exhibits an attenuation trend. The disturbance caused by soil stress to the tunnel structure must not be ignored. When the burial depth of the tunnel exceeds 64 m, the tunnel structure ceases to be disturbed by aircraft loads. The research results can significantly guide airport construction and be used as a reference for investigating the safety and stability of substructures under airport runways.

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Instrumented flexible pavement responses under aircraft loading

Cited by 8 publications

References 9 publications

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

First-Year Field Performance of Epoxy-Modified Asphalt

Numerical Study of Influencing Factors of Safety and Stability of Tunnel Structure under Airport Runway

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