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Computers and Concrete Volume 22, Number 1, July 2018 , pages 1-10 DOI: https://doi.org/10.12989/cac.2018.22.1.001 |
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Numerical analysis of propagation of macrocracks in 3D concrete structures affected by ASR |
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S. Moallemi and S. Pietruszczak
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| Abstract | ||
| In this study an implicit algorithm for modeling of propagation of macrocracks in 3D concrete structures suffering from alkali-silica reaction has been developed and implemented. The formulation of the problem prior to the onset of localized deformation is based on a chemo-elasticity approach. The localized deformation mode, involving the formation of macrocracks, is described using a simplified form of the strong discontinuity approach (SDA) that employs a volume averaging technique enhanced by a numerical procedure for tracing the propagation path in 3D space. The latter incorporates a non-local smoothening algorithm. The formulation is illustrated by a number of numerical examples that examine the crack propagation pattern in both plain and reinforced concrete under different loading scenarios. | ||
| Key Words | ||
| 3D crack propagation; volume averaging; alkali-silica reaction; reinforced concrete | ||
| Address | ||
| S. Moallemi and S. Pietruszczak: Department of Civil Engineering, McMaster University, 1280, Main St W, Hamilton, Ontario, Canada | ||