Print Email Facebook Twitter Multiscale lattice fracture model for cement-based materials Title Multiscale lattice fracture model for cement-based materials Author Qian, Z. Schlangen, E. Ye, G. Van Breugel, K. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2012-11-25 Abstract Cracking in cement-based materials is usually not easy to predict, because of the complexity of their microstructures. Concrete is a composite material of mortar and coarse aggregates, and mortar consists of cement paste and sands. The fracture processes in these materials are related, and this paper aims to reveal the relationship by developing a multiscale model using lattice approach. Lattice fracture model was proposed and applied to simulate the fracture processes in concrete in the early 1990s. Afterwards it gained extensive investigations as it can reproduce the crack patterns observed in laboratory. The lattice model can also simulate the mechanical properties of cementbased materials, such as Young's modulus, tensile strength and fracture energy. In this paper, a multiscale lattice fracture model is proposed, which can connect the fracture behavior of cement paste at microscale to the mechanical properties of mortar at mesoscale, and eventually to the performance of concrete at macroscale. The upscaling technique in this model is an implementation of the multi-level homogenization concept. Subject multiscale modellattice approachfracture in cement-based materialsmulti-level homogenizationAnm material model To reference this document use: http://resolver.tudelft.nl/uuid:302cd26b-a74c-44b3-a947-8009b133aada ISBN 978-1-921897-54-2 Source ICCM 2012: 4th International Conference on Computational Methods, Gold Coast, Australia, 25-28 November 2012 Part of collection Institutional Repository Document type conference paper Rights (c) 2012 The Author(s) Files PDF 290036.pdf 1.68 MB Close viewer /islandora/object/uuid:302cd26b-a74c-44b3-a947-8009b133aada/datastream/OBJ/view