Abstract
The book analyzes quasi-static fracture in plain concrete and reinforced concrete by means of constitutive models formulated within continuum mechanics. A continuous and discontinuous modelling approach was used. Using a continuous approach, analyses were performed using a finite element method and four different continuum concrete models: enhanced isotropic elasto-plastic, enhanced isotropic damage, enhanced anisotropic smeared crack and enhanced coupled elasto-plastic-damage model. The models were equipped with a characteristic length of micro-structure by means of a non-local and a second-gradient theory, so they could describe the formation of localized zones with a certain thickness and spacing and a related deterministic size effect. FE results converged to a finite size of localized zones via mesh refinement. In addition, numerical results of cracks in plain concrete using a discontinuous approach including cohesive (interface) elements and XFEM were presented which were also properly regularized. Numerical results were compared with corresponding laboratory tests from the scientific literature and own tests.
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© 2013 Springer-Verlag GmbH Berlin Heidelberg
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Tejchman, J., Bobiński, J. (2013). Final Conclusions and Future Research Directions. In: Continuous and Discontinuous Modelling of Fracture in Concrete Using FEM. Springer Series in Geomechanics and Geoengineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28463-2_10
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DOI: https://doi.org/10.1007/978-3-642-28463-2_10
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-28462-5
Online ISBN: 978-3-642-28463-2
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