The critical state friction angle of granular materials: does it depend on grading?

2017 ◽  
Vol 13 (3) ◽  
pp. 535-547 ◽  
Author(s):  
J. Yang ◽  
X. D. Luo
Keyword(s):  
Granular Materials ◽  
Critical State ◽  
Friction Angle

New insights into the effect of interparticle friction on the critical state friction angle of granular materials

2019 ◽  
Vol 113 ◽  
pp. 103105 ◽  
Author(s):  
Jian Gong ◽  
Jinfeng Zou ◽  
Lianheng Zhao ◽  
Liang Li ◽  
Zhihong Nie
Keyword(s):  
Granular Materials ◽  
Critical State ◽  
Friction Angle ◽  
Interparticle Friction

Effect of Grain Orientation Distribution on Anisotropy of Idealized Granular Materials

2012 ◽  
Vol 174-177 ◽  
pp. 24-29
Author(s):  
Bo Zhou ◽  
Ji Wei Li ◽  
Peng Shuai
Keyword(s):  
Granular Materials ◽  
Grain Orientation ◽  
Volumetric Strain ◽  
Friction Angle ◽  
Orientation Distribution ◽  
Biaxial Compression ◽  
Shape Effect ◽  
Vertical Loading ◽  
Horizontal Loading ◽  
Long Rod

Abstract. The regular grain orientation of granular materials is a common phenomenon in nature. Based on the research of grain shape effect on mechanical property of granular materials, two kinds of idealized shape grain (kind of long rod and square) assemblies with different grain orientation were studied by simulated biaxial compression test using Discrete Element Method. The significant orientation which can be computed as the mean value of all grain orientation is introduced to represent the orientation regularity of granular materials. In order to study the anisotropy, the mobilized friction angle and volumetric strain of assemblies with different significant orientation were obtained under both vertical and horizontal loading. The results show that the regular orientation of grains influences the movement such as motion and rotation obviously; with the increasing of significant orientation, peak mobilized friction angle of long rod grain assembly gradually increases under horizontal loading, and decreasing under vertical loading.

Constant-volume friction angle of granular materials: Reply

1989 ◽  
Vol 26 (1) ◽  
pp. 172-172 ◽  
Author(s):  
D. Negussey ◽  
W. K. D. Wijewickreme ◽  
Y. P. Vaid
Keyword(s):  
Granular Materials ◽  
Friction Angle ◽  
Constant Volume

scholarly journals Confidence and Accuracy in Determination of the Critical State Friction Angle

2009 ◽  
Vol 49 (3) ◽  
pp. 391-395 ◽  
Author(s):  
Mohsen Ghafghazi ◽  
Dawn Shuttle
Keyword(s):  
Critical State ◽  
Friction Angle

scholarly journals Grain roughness effect on the critical state line of crushable sands

2021 ◽  
Author(s):  
Jiangtao Lei ◽  
◽  
Marcos Arroyo ◽  
Matteo Ciantia ◽  
Ningning Zhang ◽  
...  
Keyword(s):  
Granular Materials ◽  
Critical State ◽  
Roughness Effect ◽  
Dem Simulation ◽  
Dem Model ◽  
Grain Roughness

A recently proposed DEM model for materials with rough crushable grains (Zhang et al. 2021; Ciantia et al. 2015; Otsubo et al. 2017) is here employed to examine the effect of contact roughness on the critical state line, a property of granular materials which is a) fundamental for the evaluation of liquefaction risk and liquefied responses and b) easily accessible through DEM simulation (Ciantia et al. 2019).

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