7. Juli 2015 1

Presenting author: Prof. Dr. Eddie Koenders

Institute for Construction und Building

Materials

Institute for Construction and Building Materials | EAB Koenders

The Multi-scale Model of Things

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Co-developers:

Darlinton Carvalho UFSJ - Brazil

Edwin Dado NLDA - The Netherlands

Antonio Caggiano UBA - Argentina

Diego Said Schicchi INTI - Argentina

Neven Ukrainczyk TUDa - Germany

The Multi-scale Model of Things

Folie 2Institute for Construction and Building Materials | EAB Koenders

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The Multi-scale Model of Things

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MULTI-SCALE MODEL

Institute for Construction and Building Materials | EAB Koenders

The Multi-scale Model of Things

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MULTI-SCALE MODEL

Institute for Construction and Building Materials | EAB Koenders

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DIANAANSYSABAQUSFEMMASSEDuCom...

LatticeFEMDIANA... Hymostruc

CEMHYD3Dμic

... Monte CarloMolecular Dynamics...

Multi-scale Modelling

Purpose versus scale level

Institute for Construction and Building Materials | EAB Koenders

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Why Multi-scale Modelling ?

Focus on a particular scale level

Institute for Construction and Building Materials | EAB Koenders

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Multi-scale Modelling

Macro-scale level -> Thermal cracking analysis

Institute for Construction and Building Materials | EAB Koenders

Coentunnel, Amsterdam (1967)

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Multi-scale Modelling

Meso-scale level -> Material properties analysis

Lattice Models

Institute for Construction and Building Materials | EAB Koenders

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Multi-scale Modelling

Micro-scale level -> Hydration and microstructure analysis

Particle- or Pixel-based Models

CEMHYD3D Hymostruc μic

Cement-basedMicrostructure

Institute for Construction and Building Materials | EAB Koenders

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I. G. Richardson, CCC 22, (2000), 97-113

Multi-scale Modelling

Nano-scale level -> C-S-H and chemicial analysis

Colloidal modelAtomic scale model

Institute for Construction and Building Materials | EAB Koenders

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Scale Property Size range

MacroRheology / Mechanical / Cracking / Volume stability

/ Durability10-1 - 102

MesoCompressive and Tensile strength / Fracture energy

and Toughness10-5 – 10-1

Micro Hydration / Chemistry / Pore pressure / Permeability 10-6 – 10-5

NanoC-S-H analysis, Calcium leaching / CH, Ca/Si -ratio

/ Al/Si –ratio10-10 – 10-6

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Multi-scale Modelling

Bridging 10 orders of magnitude -> Property determined

?

Institute for Construction and Building Materials | EAB Koenders

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Why connecting scales ?

For example: Moisture transport analysis

Because construction materials problems are multi-scale !

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Coupled micro - meso

Paste moisture flow

Paste ITZ flow

Institute for Construction and Building Materials | EAB Koenders

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Why connecting scales ?

For example: Moisture transport analysis

Multi-scale construction materials problems

(Paper 2015 by: Antonio Caggiano, Diego Said Schicchi, Neven Ukrainczyk, Eduard Koenders)

Paste phaseMicro-level

Aggregate phaseMeso-level

ITZphaseMicro-Meso-level

Institute for Construction and Building Materials | EAB Koenders

Web-based multi-scale modeling

Macro level

Meso level

Micro level

Nano level

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Virtual modelling for cement-based materials

Institute for Construction and Building Materials | EAB Koenders

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Web-based multi-scale modeling

Virtual modelling for cement-based materials

Institute for Construction and Building Materials | EAB Koenders

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Web-based multi-scale modeling

Virtual modelling for cement-based materials

Institute for Construction and Building Materials | EAB Koenders

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Web-based multi-scale modeling

Virtual modelling for cement-based materials

Institute for Construction and Building Materials | EAB Koenders

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Web-based multi-scale modeling

Prototype

Institute for Construction and Building Materials | EAB Koenders

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Web-based multi-scale modeling

Prototype

Institute for Construction and Building Materials | EAB Koenders

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Web-based multi-scale modeling

Prototype

Institute for Construction and Building Materials | EAB Koenders

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Thanks for the attention!

Institute for Construction and Building Materials | EAB Koenders