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    Fast 3D Voronoi and Voxel–Based Mesostructure Modeling Method for Asphalt Concrete

    Source: Journal of Engineering Mechanics:;2023:;Volume ( 149 ):;issue: 009::page 04023062-1
    Author:
    Xin Wei
    ,
    Yiren Sun
    ,
    Hongren Gong
    ,
    Jingyun Chen
    DOI: 10.1061/JENMDT.EMENG-7109
    Publisher: ASCE
    Abstract: A fast three-dimensional (3D) Voronoi and voxel based mesostructure modeling method was proposed for asphalt concrete. This method combine the advantages of the Voronoi diagram, voxel meshing, and take-and-place techniques and can be divided into three stages. First, the specimen space was divided into Voronoi cells that provided clear boundaries for the aggregates to be generated. Then, the voxel model of the specimen space was established and the voxels within the Voronoi cells were regarded as the finite elements (FEs) of the aggregates via a voxel mapping process in the second stage. Both the space division process and the voxel mapping process were repeated until aggregates with a desired gradation were obtained. The last stage was to generate air voids by randomly deleting the asphalt mortar elements via a take-and-place strategy. The effectiveness of this method was validated by the complex modulus testing data of a real asphalt concrete. A common FE simulation workflow that generally separates the processes of establishing the geometry models and FE meshes was employed. The results showed that the proposed method only spent ten of seconds, less than 1% of the time required by the common workflow, to obtain the mesostructural FE models, but exhibited very similar mesomechanical results to those from the common method. Therefore, the proposed method enables a fast entry into the FE analysis stage and can be expected to be an efficient tool in simulating the mesomechanical behavior of asphalt concrete.
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      Fast 3D Voronoi and Voxel–Based Mesostructure Modeling Method for Asphalt Concrete

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    contributor authorXin Wei
    contributor authorYiren Sun
    contributor authorHongren Gong
    contributor authorJingyun Chen
    date accessioned2023-11-27T23:22:52Z
    date available2023-11-27T23:22:52Z
    date issued6/27/2023 12:00:00 AM
    date issued2023-06-27
    identifier otherJENMDT.EMENG-7109.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4293515
    description abstractA fast three-dimensional (3D) Voronoi and voxel based mesostructure modeling method was proposed for asphalt concrete. This method combine the advantages of the Voronoi diagram, voxel meshing, and take-and-place techniques and can be divided into three stages. First, the specimen space was divided into Voronoi cells that provided clear boundaries for the aggregates to be generated. Then, the voxel model of the specimen space was established and the voxels within the Voronoi cells were regarded as the finite elements (FEs) of the aggregates via a voxel mapping process in the second stage. Both the space division process and the voxel mapping process were repeated until aggregates with a desired gradation were obtained. The last stage was to generate air voids by randomly deleting the asphalt mortar elements via a take-and-place strategy. The effectiveness of this method was validated by the complex modulus testing data of a real asphalt concrete. A common FE simulation workflow that generally separates the processes of establishing the geometry models and FE meshes was employed. The results showed that the proposed method only spent ten of seconds, less than 1% of the time required by the common workflow, to obtain the mesostructural FE models, but exhibited very similar mesomechanical results to those from the common method. Therefore, the proposed method enables a fast entry into the FE analysis stage and can be expected to be an efficient tool in simulating the mesomechanical behavior of asphalt concrete.
    publisherASCE
    titleFast 3D Voronoi and Voxel–Based Mesostructure Modeling Method for Asphalt Concrete
    typeJournal Article
    journal volume149
    journal issue9
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/JENMDT.EMENG-7109
    journal fristpage04023062-1
    journal lastpage04023062-11
    page11
    treeJournal of Engineering Mechanics:;2023:;Volume ( 149 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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