Numerical Simulation of 3D Printing of Infrastructure Materials

E. Ramyar, Z. Xinwei, G. Cusatis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

3D printing is poised to become a disruptive force for the terrestrial construction industry, and it is also the most likely technology that will make possible the safe and reliable development of extraterrestrial infrastructure. While more and more researchers are working on developing novel and appropriate mixes, as well as 3D printing technologies, only a few and somewhat limited computational models are available in the literature for the design and analysis of 3D printed structures. Nevertheless, engineers need simulation tools for the design and optimization of any structure, including 3D printed. The main objective of this paper is to highlight the formulation of the discrete fresh concrete model (DFCM). DFCM is a particle-based fresh cementitious material model that simulates the rheological and mechanical behavior of material accurately before, during, and after printing to optimize the printing process and the material flow. For DFCM, the interaction among spherical particles is governed by visco-plastic constitutive equations, which, unlike conventional particle models that use force-displacement relationships, are based on stress-strain relationships. This allows a mathematical formulation enabling a seamless transition from the description of fresh concrete to the one of hardened concrete.

Original languageEnglish (US)
Title of host publicationEarth and Space 2021
Subtitle of host publicationSpace Exploration, Utilization, Engineering, and Construction in Extreme Environments - Selected Papers from the 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
EditorsPaul J. van Susante, Alaina Dickason Roberts
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1242-1250
Number of pages9
ISBN (Electronic)9780784483374
DOIs
StatePublished - 2021
Event17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments: Space Exploration, Utilization, Engineering, and Construction in Extreme Environments, Earth and Space 2021 - Seattle, United States
Duration: Apr 19 2021Apr 23 2021

Publication series

NameEarth and Space 2021: Space Exploration, Utilization, Engineering, and Construction in Extreme Environments - Selected Papers from the 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments

Conference

Conference17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments: Space Exploration, Utilization, Engineering, and Construction in Extreme Environments, Earth and Space 2021
Country/TerritoryUnited States
CitySeattle
Period4/19/214/23/21

ASJC Scopus subject areas

  • Building and Construction
  • Environmental Engineering
  • Civil and Structural Engineering

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