COMPRESSION RESPONSES OF BRITTLE GRANULAR MATERIALS SUBJECTED TO DYNAMIC LOADING

摘要：

In order to reveal the damage and fracture property of brittle granular materials subjected to dynamic loading,the 3-D Particle Flow Code (PFC) is employed.Three scales,for example stiff balls at the micro scale,particles at the meso scale and specimen at the macro scale,are involved.Platen tests on aggregates indicate the consistency of Weibull modulus between numerical and experimental results,which proves the effectiveness of the cluster model.Based on 1-D-strain compression numeric tests of 300 aggregates,compression behavior and the evolution process of cluster size distribution are obtained.The results are helpful for the understanding of dynamic fragmentation for brittle materials.

关键词： brittle granular materials fracture property multi-scale analysis particle breakage

作者: J.Y.Huang S.L.Xu W.Zheng S.S.Hu

作者单位: CAS Key Laboratory Mechanical Behavior and Design of Materials,University of Science and Technology of China,Hefei,Anhui 230026,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 869-872

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）