Uniqueness of Numerical Experimental Results and Contribution to Constitutive Model by DEM
It is necessary to guarantee the uniqueness of the solution by DEM.At first,this paper aims to make sure the uniqueness for biaxial compression test with oval particles using parametric study.It was found that the strain rate has an important role comparing with other affecting factors.Secondly,the simulations were conducted until large strain to study the initiation of shear band formation and the existence of steady state.It was clarified that the initiation of the shear band formation occurs around the peak strength for dense material and the steady sate does not necessarily exist.
DEM shear band strain rate uniqueness
Kiichi Suzuki
Department of Civil and Environmental Engineering,Saitama University,255 Shimo-Okubo,Sakura-ku,Saitama City,Saltama,338-8570 Japan
国际会议
北京
英文
627-631
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）