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- W3044354052 abstract "Damage in concrete has been modelled using various approaches such as fracture mechanics, continuum damage mechanics and failure envelope theories. This study proposes a new approach to model the initiation of damage in concrete that addresses some limitations associated with the existing approaches. The proposed approach defines damage in terms of changes in the density of the material at the microscopic level, where such changes are induced by mechanical loading. The suggested approach is used to simulate the response of 2D concrete bodies to uni-axial tension and uni-axial compression. The simulation results indicate that the proposed model, by means of a single constitutive function, is able to correctly predict failure patterns and aptly capture the damage mechanisms under both uni-axial tension and uni-axial compression loadings using only the information related to the microstructure, the density field and the stiffness field. As a continuation, in Part II, the ability of the D3-M approach to model fully coupled chemo-mechanical damage in concrete using a single constitutive equation will be demonstrated." @default.
- W3044354052 created "2020-07-29" @default.
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- W3044354052 date "2020-07-23" @default.
- W3044354052 modified "2023-10-15" @default.
- W3044354052 title "Density-driven damage mechanics (D3-M) model for concrete I: mechanical damage" @default.
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- W3044354052 doi "https://doi.org/10.1080/10298436.2020.1793983" @default.
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