Micromechanical Study of Macroscopic Friction and Dissipation in Idealised Granular Materials: the Effect of Interparticle Friction
نویسندگان
چکیده
A micromechanical study is made of the relationship between interparticle friction coefficient and macroscopic continuum friction and dissipation in idealised granular materials, using Discrete Element Method simulations with varying . As expected, macroscopic friction and dilatancy increase with . Surprisingly, dissipation is present even when or when . Hence, dissipation in idealised granular materials is not exclusively the result of interparticle friction. The dependence of the dissipation-rate function on plastic strains is also investigated.
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