Discrete element modeling of inherently anisotropic granular assemblies with polygonal particles

查看全文 作　　者：Ehsan Seyedi [1]Hosseininia

机构地区：[1]Civil Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad,Mashhad, Iran

出　　处：《Particuology》索引2012年第10卷第5期,共11页

基　　金：supported by Research Deputy of Ferdowsi University of Mashhad.The provided grant(No.16759-03/12/89) 摘　　要：In the present article, we study the effect of inherent anisotropy, i.e., initial bedding angle of particles and associated voids on macroscopic mechanical behavior of granular materials, by numerical simulation of several biaxial compression tests using the discrete element method (DEM). Particle shape is considered to be irregular convex-polygonal. The effect of inherent anisotropy is investigated by following the evolution of mobilized shear strength and volume change during loading. As experimental tests have already shown, numerical simulations also indicate that initial anisotropic condition has a great influence on the strength and deformational behavior of granular assemblies. Comparison of simulations with tests using oval particles, shows that angularity influences both the mobilized shear strength and the volume change regime, which originates from the interlocking resistance between particles. 关键词：离散单元法各向异性凸多边形颗粒组件元模型剪切强度力学行为

相关文献

参考文献（43）
引证文献（15）
耦合文献（9）

参考文献(43)

引证文献(15)

耦合文献(9)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Discrete element modeling of inherently anisotropic granular assemblies with polygonal particles

参考文献(43)

引证文献(15)

耦合文献(9)

用户提示