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Computers and Concrete Volume 8, Number 4, August 2011 , pages 401-423 DOI: https://doi.org/10.12989/cac.2011.8.4.401 |
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A mesoscale model for concrete to simulate mechanical failure |
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Jorg F. Unger, Stefan Eckardt and Carsten Konke
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| Abstract | ||
| In this paper, a mesoscale model of concrete is presented, which considers particles, matrix material and the interfacial transition zone (ITZ) as separate constituents. Particles are represented as ellipsoides, generated according to a prescribed grading curve and placed randomly into the specimen. In this context, an efficient separation procedure is used. The nonlinear behavior is simulated with a cohesive interface model for the ITZ and a combined damage/plasticity model for the matrix material. The mesoscale model is used to simulate a compression and a tensile test. Furthermore, the influence of the particle distribution on the loaddisplacement curve is investigated. | ||
| Key Words | ||
| mesoscale; concrete. | ||
| Address | ||
| Jorg F. Unger, Stefan Eckardt and Carsten Konke: Institute of Structural Mechanics, Bauhaus University Weimar, Marienstr. 15, D-99423 Weimar, Germany | ||