Multi-scale Modelling: The Delftcode

Title: Multi-scale Modelling: The Delftcode
Author(s): E.A.B. Koenders, E. Schlangen, K. van Breugel
Paper category : conference
Book title: International RILEM Symposium on Concrete Modelling - ConMod '08
Editor(s): E. Schlangen and G. De Schutter
Print-ISBN: 978-2-35158-060-8
e-ISBN: 978-2-35158-076-9
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 251 - 258
Total Pages: 8
Nb references: 12
Language: English

Abstract: Simulating the behaviour of hardening concrete has been a challenge to many researchers from all over the world. Comprehensive analytical and numerical models haven been developed for many different scale levels and for all kinds of facets that characterise the behaviour of hardening concrete. At first these simulations were based on analytical models with which relatively small problems could be simulated only. Later on, after the introduction of the personal computer, more complex problems could be handled with these developed macro-level simulation models. The introduction of the pixel- and particle-based hydration models of NIST [1] and Delft [2] could be identified as a milestone and the beginning of the numerical modelling of the in-depth models where behaviour of the microstructure of cementitious materials was modelled as the micro-level. In between these levels, meso-level models (e.g. lattice models) were developed that were used to simulate concrete as a twophase system consisting of paste and aggregates. The latest trend in hydration modelling is to extend the level of detailing towards the nano-scale level and to model the development of hydration products explicitly.
The DelftCode is an initiative of the Microlab with the aim to line-up the models that are developed for their particular level of detail and to make them compatible within one single modelling framework. The result is a multi-scale simulation model that covers 10 orders of magnitude and allows to include for the nano- to meso-level effects in macroscale structures.

Online publication: 2009-06-15
Publication type : full_text
Public price (Euros): 0.00