Abstract
A numerical model for concrete specimens, holding at a micro-, meso- and macro-level is pursued. The constraints are: simplicity (the basic constitutive law must be described by two or three parameters), objectivity (the results are insensitive to the mesh size) and consistency (the results must agree with laboratory measurements: size effect, softening, crack localization and tension-compression ratio). A model was recently proposed by the authors to catch the essential of the phenomenon. In this paper, it is improved to satisfy some formal requirements and a better accuracy is achieved. This is emphasized through a detailed check of the constraints.
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Bontempi, F., Casciati, F. (1998). Scale Effect for Concrete Specimens: A Numerical Model. In: Frantziskonis, G.N. (eds) PROBAMAT-21st Century: Probabilities and Materials. NATO ASI Series, vol 46. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5216-7_19
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DOI: https://doi.org/10.1007/978-94-011-5216-7_19
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