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Numerische Analyse von Grenzflächen in 3D gedrucktem Beton mittels der Diskrete‐Elemente‐Methode
Author(s) -
VallePello P.,
ÁlvarezRabanal F.P.,
AlonsoMartínez M.,
del Coz Díaz J.J.
Publication year - 2019
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201800188
Subject(s) - flexural strength , materials science , interface (matter) , discrete element method , process (computing) , 3d printing , composite material , point (geometry) , work (physics) , finite element method , structural engineering , computer simulation , mechanical engineering , computer science , engineering , mechanics , geometry , simulation , physics , mathematics , capillary number , capillary action , operating system
3D concrete printing is an additive manufacturing method which reduces the time and improves the efficiency of the construction process. Structural behavior of printed elements is strongly influenced by the properties of the material and the interface surfaces. The printing process creates interface surfaces between layers in the horizontal and vertical directions. The bond strength between layers is the most critical property of printed elements. In this paper, the structural behavior of printed elements is studied using the discrete element method. The material is modelled using discrete particles with bonding between them. A new discrete model of a multilayer geometry is presented to study the behavior of the interfaces of printed concrete. The layers are made up of randomly placed particles to simulate the heterogeneous nature of concrete. The numerical model is developed to simulate the flexural behavior of multilayer specimens. A four‐point flexural test is simulated considering the interface surfaces between layers. This numerical model provides relevant results to improve the behavior of this kind of structural elements. The aim of this work is to provide a discrete element model to predict the mechanical behavior of 3D concrete printed components.