# [1]杨军,焦丽亚,王克利,等.基于离散元方法的沥青混合料虚拟三轴剪切试验三维模拟[J].东南大学学报(自然科学版),2014,44(5):1057-1061.[doi:10.3969/j.issn.1001-0505.2014.05.032] 　Yang Jun,Jiao Liya,Wang Keli,et al.Three dimensional simulation of virtual triaxial shear test for asphalt mixture based on discrete element method[J].Journal of Southeast University (Natural Science Edition),2014,44(5):1057-1061.[doi:10.3969/j.issn.1001-0505.2014.05.032] 点击复制 基于离散元方法的沥青混合料虚拟三轴剪切试验三维模拟() 分享到： var jiathis_config = { data_track_clickback: true };

44

2014年第5期

1057-1061

2014-09-20

## 文章信息/Info

Title:
Three dimensional simulation of virtual triaxial shear test for asphalt mixture based on discrete element method

1东南大学交通学院, 南京 210096; 2中国山东对外经济技术合作集团有限公司, 济南 250098
Author(s):
1School of Transportation, Southeast University, Nanjing 210096, China
2China Shandong International Economic and Technical Cooperation Group Co., Ltd., Jinan 250098, China

Keywords:

U416.217
DOI:
10.3969/j.issn.1001-0505.2014.05.032

Abstract:
A mesoscopic mechanic structure model of asphalt mixture is established based on the discrete element method and validated by using the virtual triaxial shear tests. First, a coarse aggregate generation algorithm is developed based on the working mechanism of the square sieve system, aggregates with irregular shapes are generated, making the shape control of coarse aggregate diversified and precise. Then, the air void phase with actual longitudinal distribution scenario is introduced into the mesoscopic structure model of asphalt mixture, which substitutes the random distribution in traditional methods. The contact constitutive parameters of asphalt mastic at medium and high temperatures are obtained by combing laboratory tests and virtual tests. The simulation results of virtual triaxial shear tests and the predictive results for anti-shear strengths of asphalt mixture verify the reasonableness of the proposed mesoscopic mechanic structure model. The shear damage modes from the laboratory tests and those of the actual specimens are similar, and the shear strengths of laboratory tests generally agree with the actual results.

## 参考文献/References:

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