PSI - Issue 39

Fabrizio Greco et al. / Procedia Structural Integrity 39 (2022) 638–648 Author name / Structural Integrity Procedia 00 (2019) 000–000

647

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The results have highlighted that the implementation of randomized cohesive strengths is essential for achieving numerical results having physical meaning. In particular, a proper selection of the Weibull parameter is necessary to avoid either excessively weak interfaces or a vanishing effect of the cohesive strength differences. Hence, the results have highlighted that the proposed DIM methodology represents a proper numerical tool for reproducing the fracture behavior of quasi-brittle materials under tensile actions, both in terms of peak and post-peak

softening response. Acknowledgements

Fabrizio Greco and Paolo Lonetti gratefully acknowledge financial support from the Italian Ministry of Education, University and Research (MIUR) under the P.R.I.N. 2017 National Grant “Multiscale Innovative Materials and Structures” (Project Code 2017J4EAYB; University of Calabria Research Unit). Arturo Pascuzzo gratefully acknowledge financial support from the Italian Ministry of Education, University and Research (MIUR) under the National Grant “PON R&I 2014-2020, Attraction and International Mobility (AIM)”, Project n° AIM1810287, University of Calabria”. Domenico Ammendolea gratefully acknowledge financial support from “Programma Operativo Regione (POR) Calabria FESR-FSE 2014/2020”.

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