DEM investigation of the effect of intermediate principle stress on particle breakage of granular materials |
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| Institution: | 1. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China;2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Xiaohongshan, Wuhan, Hubei 430071, China;1. Research Institute of Geotechnical Engineering and Information Technology, Sun Yat-sen University, China;2. Department of Civil Engineering, The University of Hong Kong, Hong Kong, China;1. CSIRO Digital Productivity Flagship, Australia;2. JKMRC, The University of Queensland, Australia |
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| Abstract: | This study investigates the influence of the intermediate principle stress on the particle breakage of granular materials. The crushable agglomerate method is applied to model soil particles and numerical true triaxial tests were carried out. The results show that particle breakage increases with increasing b value, the relationship of which follows an exponential function and agrees well with previous experimental results. More importantly, the study found that the relationship between particle breakage and total energy input is independent of the intermediate principle stress, which provides a good basis for the constitutive modeling of granular materials. |
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| Keywords: | Discrete element method Particle breakage Intermediate principle stress Total energy input |
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