Micromechanical finite element modeling of moisture damage in bituminous composite materials

Ghauch, Ziad G.; Özer, Hasan; Al-Qadi, Imad L.

doi:10.1016/j.conbuildmat.2014.12.118

Cited by 15 publications

(5 citation statements)

References 27 publications

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“…Meng et al [130] investigated the preferential path of water flow inside a permeable asphalt mixture using the topological network model, while the fluid flow characteristics were evaluated using a 2D FE model. Ghauch et al [131] constructed a 3D FEM model of the asphalt mixture based on CT scanning technology and then numerically investigated the effect of moisture on the microscale and macroscale responses of the asphalt mixture, while the cohesive and adhesive damage features could be thus assessed.…”

Section: Performance Modeling Of the Asphalt Mixture Based On X-ray C...mentioning

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: Performance Modeling Of the Asphalt Mixture Based On X-ray C...mentioning

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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“…Thus, to overcome these difficulties and automate the RVE generation process, a MATLAB script was written to replace the irregular-shaped aggregates with circles of equivalent areas in the RVE to maintain the aggregate-mastic ratio. It is assumed that the air voids and smaller aggregate particles are incorporated in the mastic phase, which is common for micromechanical analysis of heterogenous AC (6,7,33,(35)(36)(37). This enables better mesh control in the RVE, and, with known positions of the aggregates, the addition or reduction of the aggregates, that is, changing the aggregate-mastic ratio, can be accommodated in a more rapid way.…”

Section: Morphological Image Analysismentioning

confidence: 99%

Multiscale Modeling of Asphalt Concrete and Validation through Instrumented Pavement Section

Khan

Tarefder

Faisal

2021

Transportation Research Record: Journal of the Transportation R

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In this study, macroscale responses of asphalt concrete (AC) are predicted from the responses of its corresponding microscale representative volume element (RVE) within a finite element framework using quasi-static and dynamic analyses. Nanoindentation test was performed on the mastic and aggregate phase of an AC sample to determine the viscoelastic and elastic properties of RVE elements. Aggregate-mastic proportions in the RVE were obtained from the morphological image analysis. Macroscale model responses were compared with the AC pavement responses obtained from an instrumented pavement section subjected to falling weight deflectometer loading and a class 9 vehicle. Model responses are very close to the actual responses. The multiscale analyses show that tensile strain in microscale RVE is 5–10 times higher than that in a macroscale element. Furthermore, multiscale analyses also show that variations in the microscale RVE, such as the reduction in the aggregate-mastic ratio or increment in the voids, can increase the maximum tensile strain at the bottom of the AC in macroscale model by around 25%.

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“…Over the years, many studies have been conducted to obtain the stress/strain fields of each phase and further analyse the propensity of a given PA mix for ravelling (Kringos and Scarpas 2005, Mo et al 2007, Kringos and Scarpas 2008, Mo et al 2009, Ghauch et al 2015, Manrique-Sanchez et al 2018. Most of these studies used the computational technique based on the finite element method (FEM)/discrete element method (DEM).…”

Section: Introductionmentioning

confidence: 99%

Effect of stone-on-stone contact on porous asphalt mixes: micromechanical analysis

Zhang

Anupam

Scarpas

et al. 2019

International Journal of Pavement Engineering

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Within the pavement engineering community, porous asphalt (PA) mixes are regarded as mixes capable of reducing noise and improving wet skid resistance. However, these mixes are likely to have the distress of ravelling. In order to analyse the propensity of a given PA mix for ravelling, the homogenisation technique can be considered as an attractive method. Along the line of the homogenisation technique, micromechanical models have been used to predict the stiffness of asphalt mixes. However, it was found that the predicted results were not in good agreement with the experimental values due to the fact that the stiffness of interacted aggregates was not accurately accounted in the models. To deal with this issue, it is important for researchers to study the stiffness of the interacted aggregates network and its role in the behaviour of a given mix. Based on this realisation, this paper provided a methodology to estimate the stiffness of the stone-on-stone skeleton and its role in the overall response of PA mixes. The results showed that the predicted stiffness of the stone-on-stone skeleton is dependent on the loading frequency/temperature and the compaction effort. The frequency response of the stone-on-stone skeleton is similar to that of the mix.

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Micromechanical finite element modeling of moisture damage in bituminous composite materials

Cited by 15 publications

References 27 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

Multiscale Modeling of Asphalt Concrete and Validation through Instrumented Pavement Section

Effect of stone-on-stone contact on porous asphalt mixes: micromechanical analysis

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