Coupling simulator between chemical diffusion and crack propagation by a Voxel FEM incorporated with the Damage Mechanics

Akane Watanabe, Mitsuteru Asai

Research output: Contribution to journalArticle

Abstract

Alkali Silica Reaction (ASR), chloride damage of reinforced steel and other aging degradations in concrete structures are strongly dependent on both of chemical phenomena and mechanical behavior including fracture. In this study, a coupling simulator has been developed in order to investigate the degradation mechanism of these concrete aging damages. In the coupling simulator, non-stationary diffusion analysis for Alkali ion is solved firstly, and then the expansion force act on the aggregate is evaluated by referring consistency of the alkali ion. In the second step, nonlinear damage analysis is conducted. The nonlinear damage analysis evaluates cracking region with the damage parameter. The following diffusion analysis changes diffusion coefficient in the cracking region by referring the damage parameter. The above procedures are coupled at each time step.

Original languageEnglish
JournalTransactions of the Japan Society for Computational Engineering and Science
Volume2013
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Engineering(all)

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