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Discrete Element Modeling of Asphalt Concrete Cracking Using a User-defined Three-dimensional Micromechanical Approach |
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| Authors: | CHEN Jun PAN Tongyan HUANG Xiaoming |
| Affiliation: | CHEN Jun1,PAN Tongyan2,HUANG Xiaoming3 (1.College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China,2. Department of Civil Engineering,Catholic University of America,Washington,DC 20064,USA,3. School of Transportation,Southeast University,Nanjing 210096,China) |
| Abstract: | We established a user-defined micromechanical model using discrete element method (DEM) to investigate the cracking behavior of asphalt concrete (AC). Using the Fish language provided in the particle flow code in 3-Demensions (PFC3D), the air voids and mastics in asphalt concrete were realistically built as two distinct phases. With the irregular shape of individual aggregate particles modeled using a clump of spheres of different sizes, the three-dimensional (3D) discrete element model was able to account ... |
| Keywords: | discrete element method asphalt concrete cracking behavior three-dimensional simulation micromechanics |
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