A mesoscale framework for analysis of corrosion induced damage of concrete

Research output: Contribution to journalArticle

  • External authors:
  • SC Seetharam
  • E Laloy
  • L Yu
  • QT Phung
  • NP Pham
  • K Bruno
  • F Druyts

Abstract

A mesoscale damage framework is developed for investigating the extent of crack or damage penetration in a large-scale concrete component induced by corrosion process under various boundary conditions. The framework synthesizes a robust particle generation algorithm, a state of the art mesoscale damage model and a global optimization algorithm. Three-point bending experiments on geometrically similar specimens, designed to capture the size effect reasonably well, are reported and used as the basis for estimating mesoscale damage parameters. The results show how boundary conditions control damage evolution, realising scenarios from complete penetration to arrest of damage at different penetration levels within the component. In particular, it is shown that damage is arrested under external pressure and fixed displacement boundary conditions, but fully penetrates under stress-free boundary condition. The outcome is significant for the integrity assessment of concrete elements encapsulating corroding metallic containers.

Bibliographical metadata

Original languageEnglish
Pages (from-to)347-361
Number of pages31
JournalConstruction and Building Materials
Volume216
Early online date9 May 2019
DOIs
Publication statusPublished - 20 Aug 2019

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