Discrete element modeling for predicting 3D-printed concrete process parameters

Resumo

This work presents a computational model for the simulation of the rheological behavior of 3D-printed
fresh concrete. Our approach is based on the discrete element method (DEM) for description of the particles’
overall dynamics, combined with the Discrete Fresh Concrete (DFC) model [1] to account for particle-particle
and particle-wall interactions at the level of the (contact) constitutive equation. Using the DFC model, we hope
to be able to represent the interaction among coarse aggregate particles within a fine mortar matrix. This is an
on-going research that is part of a master’s dissertation, and only the theoretical framework will be presented by
now. Numerical results shall appear soon.