Simulation of rheological behavior of asphalt mixture with lattice model
Simulation of rheological behavior of asphalt mixture with lattice model
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DOI：
10.1007/s11771-008-0336-9
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发表时间：
2008-09
影响因子：
--
通讯作者：
Shengfeng Yang;Xinhua Yang;Chuan-yao Chen
中科院分区：
文献类型：
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作者：
Shengfeng Yang;Xinhua Yang;Chuan-yao Chen
提出了一种预测沥青混合料流变性能的三维格子模型。在该模型中，沥青混合料被描述为由沥青砂和随机分布的粗集料组成的两相复合材料。将沥青砂视为粘弹性材料，将集料视为弹性材料。模拟了沥青混合料在不同恒定应力作用下的流变响应。标定的整体蠕变应变显示出良好的近似实验结果。
A three-dimensional (3D) lattice model for predicting the rheological behavior of asphalt mixtures was presented. In this model asphalt mixtures were described as a two-phase composite material consisting of asphalt sand and coarse aggregates distributed randomly. Asphalt sand was regarded as a viscoelastic material and aggregates as an elastic material. The rheological response of asphalt mixture subjected to different constant stresses was simulated. The calibrated overall creep strain shows a good approximation to experimental results.