A unified continuum framework links restitution coefficient to macroscopic viscosity via wave attenuation analysis and combines it with μ(I) rheology for rate-dependent granular flow simulations in the material point method.
Więckowski, The material point method in large strain engineering problems, Computer methods in applied mechanics and engineering 193 (2004) 4417–4438
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Continuum granular flow model with restitution-derived viscoelastic damping
A unified continuum framework links restitution coefficient to macroscopic viscosity via wave attenuation analysis and combines it with μ(I) rheology for rate-dependent granular flow simulations in the material point method.