A study on the mesoscopic damage of asphalt mixture under freeze-thaw cycles based on discrete element theory
Source abstract
Abstract
In order to study the damage and failure of asphalt mixture under uniaxial loading under freeze-thaw cycle, a damage constitutive model is constructed based on the Particle Flow Code (PFC2D). Through four sets of uniaxial compression laboratory tests with different freeze-thaw cycles, numerical simulation with the help of PFC2D, analysis of macroscopic failure of asphalt mixture and evolution law of internal microcracks from mesoscopic perspective, the equation of the relationship between the damage variable and the strain is established. The results of the study showed that: (1) The numerical simulations are in good agreement with the experimental results. (2) The increase of freeze-thaw cycles will increase the freeze-thaw damage variable and peak strain of asphalt mixture and reduce the compressive strength of asphalt mixture. (3) The established piecewise function expression can fit the relationship between the damage variable and the strain well. This study provides a convenient method for the mesoscopic study of asphalt mixture loading test under freeze-thaw cycle.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Rock Mechanics and Modeling · Asphalt Pavement Performance Evaluation · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Study on the constitutive relationship of damage of continuous dense graded asphalt mixture under freeze-thaw cycle
2. Effect of salt freeze-thaw cycle on low temperature performance of asphalt mixture
3. Fracture evolution and failure characteristics of sandstone under freeze-thaw cycling by computed tomography10.1016/j.enggeo.2021.106370 ↗
4. Study on mesoscopic fracture evolution characteristics of freeze-thaw sandstone based on discrete element simulation
5. Study on the friction effect and damage evolution law of the end face of uniaxial compression test
6. Influence of freeze–thaw cycles on mechanical properties of pervious concrete: From experimental studies to discrete element simulations
7. Microstructure and mechanical behavior of asphalt mixture based on freeze-thaw cycle
8. Study on a damage model and uniaxial compression simulation method of frozen-thawed rock
9. Mechanical behavior and damage constitutive model of rock subjected to water-weakening effect and uniaxial loading10.1007/s00603-018-1580-4 ↗
10. A micromechanical model of freeze-thaw damage in asphalt mixtures10.1080/10298436.2019.1656808 ↗
11. Erratum to: Discussion on failure mechanism and strength criterion of sandstone based on particle discrete element method
12. Simulation analysis of mesoscopic characteristics of dynamic fracture damage of heterogeneous rocks
13. Laboratory investigation on pavement performance of basalt fiber-reinforced asphalt mixture under the coupling effect of freeze-thaw cycles and aging
14. Study on mechanical response of asphalt pavement structure under temperature-moving load coupling
15. Vehicle-road dynamic response analysis of asphalt pavement based on discrete element method
16. Micromechanical behavior of jointed rock masses under uniaxial compression loading: a numerical study based on the discrete element method
17. Discrete element modeling of strength and failure behavior of transversely isotropic rock under uniaxial compression10.1007/s12594-019-1158-0 ↗
18. Using random heterogeneous DEM model to simulate the SCB fracture behavior of asphalt concrete10.1016/j.conbuildmat.2019.117580 ↗
19. Crack propagation characterization of asphalt mixtures: weibull distribution and entropy approach10.1061/(ASCE)MT.1943-5533.0003031 ↗
20. Analysis of the fatigue mechanism of cement-stabilized macadam mesoscopic intrinsic contact based on the damage accumulation-energy dissipation method
21. Study on the performance of asphalt mixture under freeze-thaw cycle conditions
22. Lei · 2023
23. Evaluation method of rock brittleness based on statistical constitutive relations for rock damage10.1016/j.petrol.2017.03.041 ↗
24. A discrete element model to describe failure of strong rock in uniaxial compression10.1007/s10035-010-0230-7 ↗
25. Failure behaviour of jointed rock masses with 3D nonpenetrating joints under uniaxial compression: insights from discrete element method modelling
26. Strength and failure characteristics of jointed rock mass with double circular holes under uniaxial compression: Insights from discrete element method modelling10.1016/j.tafmec.2020.102692 ↗
27. Study on microscopic failure mechanism of granite based on particle flow
28. Damage law of asphalt mixture under freeze-thaw cycle conditions
29. Study on the correspondence between macro and micro parameters of rock and soil mass simulation samples based on PFC
30. Particle discrete element study on unloading failure characteristics of shale under different water absorption times