Abstract
This paper develops a mesoscale finite element method for realistic modeling of complex cohesive fracture in asphalt mixture with a given gradation. A random aggregate generation and packing algorithm is employed to create 2D and 3D heterogeneous asphalt mixture specimens, and cohesive elements with tension/shear softening laws are inserted into both mastic and aggregate-mastic interfaces to simulate crack initiation and propagation. The nucleation and coalescence of microcracks and propagation of macrocracks in 2D and 3D specimens is realistically modeled in detail with a few important conclusions drawn. The effects of coarse aggregate distributions on performance of asphalt mixture are also evaluated.
| Original language | English |
|---|---|
| Pages (from-to) | 114-122 |
| Number of pages | 9 |
| Journal | Procedia IUTAM |
| Volume | 6 |
| Early online date | 2 Apr 2013 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
Bibliographical note
Open access under CC BY-NC-ND license.Fingerprint
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