Computational Granular Dynamics

By Thorsten Pöschel, T. Schwager. 2005

329 citations recorded by the source corpus.

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Particle-based simulation of powder application in additive manufacturing (2016, unknown): “The interactions between spherical particles belonging to distinct composite particles are calculated by considering both contact forces and attractive particle interaction forces [36], [33].”
A discrete element thermo-mechanical modelling of diffuse damage induced by thermal expansion mismatch of two-phase materials (2017, background): “The developed criterion assumes that fracture occurs if the computed tensile hydrostatic stress is higher than a threshold value σ : 1 3 trace(σ̄i) ≥ σ (14)”
Patterns and collective behavior in granular media: Theoretical concepts (2005, background): “In the simplest case of identical frictionless spherical particles of radius d with fixed restitution coefficient e it assumes the following form (∂t + (v1 · ∇)) f((v1, r1, t) = I[f ] (2) with the binary collision integral I[f ] in the form I = d2 ∫ dv2 ∫ dn12Θ(−v12 · n12)|v12 · n12| × [χf(v1 ′′,…”
Cohesive, frictional powders: contact models for tension (2008, methodology): “With tools from numerical integration, as nicely described in textbooks as [1,61,67], this is a straightforward exercise.”
Coefficient of restitution and linear–dashpot model revisited (2007, unknown): “[5,6,8,15,11,19,22, 32], only the repulsive part of the force is used,”