TY - GEN
T1 - Effects of inter-particle friction on the critical state behavior of granular materials
T2 - 3rd International Conference on Particle-Based Methods Fundamentals and Applications, Particles 2013
AU - Huang, X.
AU - Hanley, K.
AU - O'sullivan, C.
AU - Kwok, C. Y.
AU - Tham, I. G.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2013
Y1 - 2013
N2 - Critical state soil mechanics (CSSM) gives a theoretical framework for soil modelling. This paper investigates the effect of inter-particle friction on the critical state behavior of DEM assemblies with grading representative of a real soil. It is found that the angle of shearing resistance at the critical state increases with increasing inter-particle friction (?) and in void ratio (e) vs logarithmic mean effective stress (log(p')) space the critical state locii have higher e values when is higher. An atypical CSL in e-logp' space that deviates from experimental observations and the classical CSSM behavior was observed when. Micro-scale analyses show that this can be attributed to the emergence of a higher number of floating particles due to the increasing self-stability of strong force chains with increasing inter-particle friction. This study recommends the use of inter-particle friction lower than 0.5.
AB - Critical state soil mechanics (CSSM) gives a theoretical framework for soil modelling. This paper investigates the effect of inter-particle friction on the critical state behavior of DEM assemblies with grading representative of a real soil. It is found that the angle of shearing resistance at the critical state increases with increasing inter-particle friction (?) and in void ratio (e) vs logarithmic mean effective stress (log(p')) space the critical state locii have higher e values when is higher. An atypical CSL in e-logp' space that deviates from experimental observations and the classical CSSM behavior was observed when. Micro-scale analyses show that this can be attributed to the emergence of a higher number of floating particles due to the increasing self-stability of strong force chains with increasing inter-particle friction. This study recommends the use of inter-particle friction lower than 0.5.
KW - Critical state
KW - Dem
KW - Granular materials
KW - Inter-particle friction
UR - https://www.scopus.com/pages/publications/84891275464
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84891275464&origin=recordpage
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9788494153181
T3 - Particle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013
SP - 165
EP - 175
BT - Particle-Based Methods III: Fundamentals and Applications - Proceedings of the 3rd International Conference on Particle-based MethodsFundamentals and Applications, Particles 2013
Y2 - 18 September 2013 through 20 September 2013
ER -