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Multi-Length-Scale Investigation of the Fatigue Behavior of Bituminous Composites: Numerical Approach.

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Title: Multi-Length-Scale Investigation of the Fatigue Behavior of Bituminous Composites: Numerical Approach.
Authors: Khodadadi, Mojtaba1 (AUTHOR) m.khodadadi@kntu.ac.ir, Khodaii, Ali2 (AUTHOR) khodaii@aut.ac.ir, Absi, Joseph3 (AUTHOR) joseph.absi@unilim.fr, Hajikarimi, Pouria4 (AUTHOR) phajikarimi@aut.ac.ir, Fakhari Tehrani, Fateh5 (AUTHOR) fateh.fakhari-tehrani@unilim.fr
Source: Journal of Materials in Civil Engineering. Mar2026, Vol. 38 Issue 3, p1-16. 16p.
Subjects: Bituminous materials, Finite element method, Material fatigue, Computer simulation, Asphalt emulsion mixtures, Numerical analysis, Strain tensors, Cyclic loads
Abstract: Following a comprehensive series of fatigue experiments on asphalt mixture and its subscales (mortar, mastic, and bitumen), this study utilized a 3D heterogeneous finite-element model including inclusions, matrix, and air voids to simulate bituminous composite fatigue behavior. Randomly generated particles with elastic behavior and a linear viscoelastic matrix were employed in ABAQUS. Identical shear and tension-compression loading conditions were applied to bitumen-mastic and mortar-mixture models. The damage tensor, derived from experimental fatigue equations, was generated to run models at different loading cycles. Global damage (DG) for the upper scale was computed based on the local damage of lower-scale. DG -loading cycle diagrams were generated for damage thresholds of 0.4, 0.5, 0.6, and 0.7. The fatigue life of each model was determined using experimental criteria. Simulation results revealed a maximum error of 30.8%, highlighting the significant computational time reduction in this multilength-scale modeling approach. The approach allows for determining each scale's contribution to upper-scale damage evolution, inaccessible in the laboratory. The criteria of maximum C×N curve and FN , detailed in the companion paper (I), serve as suitable indicators for fatigue life. Both 2D optical microscopic images and numerical simulations suggest mortar as the most appropriate scale for fatigue investigation of the mixture. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials in Civil Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 190910879
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Multi-Length-Scale Investigation of the Fatigue Behavior of Bituminous Composites: Numerical Approach.
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  Data: <searchLink fieldCode="AR" term="%22Khodadadi%2C+Mojtaba%22">Khodadadi, Mojtaba</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> m.khodadadi@kntu.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Khodaii%2C+Ali%22">Khodaii, Ali</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> khodaii@aut.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Absi%2C+Joseph%22">Absi, Joseph</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> joseph.absi@unilim.fr</i><br /><searchLink fieldCode="AR" term="%22Hajikarimi%2C+Pouria%22">Hajikarimi, Pouria</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> phajikarimi@aut.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Fakhari+Tehrani%2C+Fateh%22">Fakhari Tehrani, Fateh</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> fateh.fakhari-tehrani@unilim.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+in+Civil+Engineering%22">Journal of Materials in Civil Engineering</searchLink>. Mar2026, Vol. 38 Issue 3, p1-16. 16p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Bituminous+materials%22">Bituminous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Material+fatigue%22">Material fatigue</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Asphalt+emulsion+mixtures%22">Asphalt emulsion mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+tensors%22">Strain tensors</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclic+loads%22">Cyclic loads</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Following a comprehensive series of fatigue experiments on asphalt mixture and its subscales (mortar, mastic, and bitumen), this study utilized a 3D heterogeneous finite-element model including inclusions, matrix, and air voids to simulate bituminous composite fatigue behavior. Randomly generated particles with elastic behavior and a linear viscoelastic matrix were employed in ABAQUS. Identical shear and tension-compression loading conditions were applied to bitumen-mastic and mortar-mixture models. The damage tensor, derived from experimental fatigue equations, was generated to run models at different loading cycles. Global damage (DG) for the upper scale was computed based on the local damage of lower-scale. DG -loading cycle diagrams were generated for damage thresholds of 0.4, 0.5, 0.6, and 0.7. The fatigue life of each model was determined using experimental criteria. Simulation results revealed a maximum error of 30.8%, highlighting the significant computational time reduction in this multilength-scale modeling approach. The approach allows for determining each scale's contribution to upper-scale damage evolution, inaccessible in the laboratory. The criteria of maximum C×N curve and FN , detailed in the companion paper (I), serve as suitable indicators for fatigue life. Both 2D optical microscopic images and numerical simulations suggest mortar as the most appropriate scale for fatigue investigation of the mixture. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials in Civil Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/JMCEE7.MTENG-21148
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1
    Subjects:
      – SubjectFull: Bituminous materials
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Material fatigue
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Asphalt emulsion mixtures
        Type: general
      – SubjectFull: Numerical analysis
        Type: general
      – SubjectFull: Strain tensors
        Type: general
      – SubjectFull: Cyclic loads
        Type: general
    Titles:
      – TitleFull: Multi-Length-Scale Investigation of the Fatigue Behavior of Bituminous Composites: Numerical Approach.
        Type: main
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          Name:
            NameFull: Khodadadi, Mojtaba
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            NameFull: Khodaii, Ali
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            NameFull: Absi, Joseph
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            NameFull: Hajikarimi, Pouria
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            NameFull: Fakhari Tehrani, Fateh
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          Dates:
            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 08991561
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              Value: 38
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              Value: 3
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            – TitleFull: Journal of Materials in Civil Engineering
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