Influence of Grain Breakage on Critical State
This paper aims to investigate the influence of grain breakage on the position of the critical state line (CSL).Existing measures of the amount of grain breakage are discussed and a new measure named relative uniformity based on the evolution of the uniformity coefficient is proposed.Triaxial tests with different stress paths on granular materials made of limestone grains are carried out.Based on the obtained results,a method for determining the modified relative breakage index and the relative uniformity is proposed using plastic work.A relation between grain breakage measures and the position of the critical state line is then proposed for describing the influence of grain breakage on mechanical properties.
Critical state grain breakage limestone grains
Wei Hu Zhen-Yu Yin Christophe Dano Pierre-Yves Hicher
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Tec Department of Civil Engineering,Shanghai Jiao Tong University,Shanghai PR China Research Institute in Civil and Mechanical Engineering,Ecole Centrale de Nantes
国际会议
北京
英文
173-177
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）