@inbook{60f569e451c74e658e9b0aa58429a7cf,
title = "Discrete element simulations of rheological response of cementitious binders as applied to 3D printing",
abstract = "This paper aims to model the extrusion-based 3D printing process of a plain ordinary Portland cement (OPC) paste using the discrete element method (DEM), and outlines the methodology adopted to evaluate the linkage between particle scale processes and extrusion process. A mini slump test is used to define the rheological model to be used in DEM, and extract the relevant parameters. They are then implemented in a scaled-down extrusion printing model to determine the influence of particle-scale effects on extrusion force. The DEM model is able to capture the differences in extrusion load-displacement responses similar to the experiments. Refinements to the model based on extracted parameters are also discussed.",
author = "Pu Yang and Nair, {Sooraj Kumar A.O.} and Narayanan Neithalath",
note = "Funding Information: Acknowledgments. The authors sincerely acknowledge support from National Science Foundation (CMMI: 1353170) towards the conduct of this study. Publisher Copyright: {\textcopyright} 2019, RILEM.",
year = "2019",
doi = "10.1007/978-3-319-99519-9_10",
language = "English (US)",
series = "RILEM Bookseries",
publisher = "Springer Netherlands",
pages = "102--112",
booktitle = "RILEM Bookseries",
}