PSI - Issue 33

Andrea Pranno et al. / Procedia Structural Integrity 33 (2021) 1103–1114 Author name / Structural Integrity Procedia 00 (2019) 000–000

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Finally, since the instability analyses performed on the bioinspired microstructure have shown prevalently the onset of macroscopic instabilities, it has been demonstrated that the onset of primary instability in nacre-like composite materials subjected to large uniaxial deformations can be investigated by monitoring the strong ellipticity condition of the homogenized tangent moduli tensor. The latter results to be computationally less expensive compared with a microscopic stability analysis performed on large assemblies of unit cells. Acknowledgements Fabrizio Greco 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). Andrea Pranno gratefully acknowledges financial support from the Italian Ministry of Education, University and Research (MIUR) under the POR Calabria FESR FSE 2014-2020, Rep. N. 1006 of 30/03/2018, Line B, Action 10.5.12. Aboudi, J., Gilat, R., 2006. Buckling analysis of fibers in composite materials by wave propagation analogy. Int. J. Solids Struct. 43, 5168–5181. Ammendolea, D., Greco, F., Lonetti, P., Luciano, R., Pascuzzo, A., 2021. Crack propagation modeling in functionally graded materials using Moving Mesh technique and interaction integral approach. Compos. Struct. 269, 114005. Barthelat, F., Dastjerdi, A.K., Rabiei, R., 2013. An improved failure criterion for biological and engineered staggered composites. J. R. Soc. Interface 10, 20120849. Belytschko, T., Loehnert, S., Song, J.-H., 2008. Multiscale aggregating discontinuities: A method for circumventing loss of material stability: MULTISCALE AGGREGATING DISCONTINUITIES. Int. J. Numer. Methods Eng. 73, 869–894. Bruno, D., Greco, F., Lonetti, P., 2005. Computation of Energy Release Rate and Mode Separation in Delaminated Composite Plates by Using Plate and Interface Variables. Mech. Adv. Mater. Struct. 12, 285–304. De Maio, U., Fabbrocino, F., Greco, F., Leonetti, L., Lonetti, P., 2019a. A study of concrete cover separation failure in FRP-plated RC beams via an inter-element fracture approach. Compos. Struct. 212, 625–636. De Maio, U., Fantuzzi, N., Greco, F., Leonetti, L., Pranno, A., 2020a. Failure Analysis of Ultra High-Performance Fiber-Reinforced Concrete Structures Enhanced with Nanomaterials by Using a Diffuse Cohesive Interface Approach. Nanomaterials 10, 1792. De Maio, U., Greco, F., Leonetti, L., Lonetti, P., Luciano, R., Nevone Blasi, P., 2020b. An Inter-element Fracture Approach for the Analysis of Concrete Cover Separation Failure in FRP-Reinforced RC Beams. In: Carcaterra, A., Paolone, A., Graziani, G. (Eds.), Proceedings of XXIV AIMETA Conference 2019, Lecture Notes in Mechanical Engineering. Springer International Publishing, Cham, pp. 537–549. De Maio, U., Greco, F., Leonetti, L., Luciano, R., Nevone Blasi, P., Vantadori, S., 2019b. A refined diffuse cohesive approach for the failure analysis in quasibrittle materials—part II: Application to plain and reinforced concrete structures. Fatigue Fract. Eng. Mater. Struct. 42, 2764– 2781. De Maio, U., Greco, F., Leonetti, L., Luciano, R., Nevone Blasi, P., Vantadori, S., 2020c. A refined diffuse cohesive approach for the failure analysis in quasibrittle materials—part I: Theoretical formulation and numerical calibration. Fatigue Fract. Eng. Mater. Struct. 43, 221–241. De Maio, U., Greco, F., Leonetti, L., Pranno, A., Sgambitterra, G., 2020d. Nonlinear analysis of microscopic instabilities in fiber-reinforced composite materials. Procedia Struct. Integr. 25, 400–412. Geymonat, G., Muller, S., Triantafyllidis, N., 1993. Homogenization of nonlinearly elastic materials, microscopic bifurcation and macroscopic loss of rank-one convexity. Arch. Ration. Mech. Anal. 122, 231–290. Goshkoderia, A., Arora, N., Slesarenko, V., Li, J., Chen, V., Juhl, A., Buskohl, P., Rudykh, S., 2020. Tunable permittivity in dielectric elastomer composites under finite strains: Periodicity, randomness, and instabilities. Int. J. Mech. Sci. 186, 105880. Greco, F., Ammendolea, D., Lonetti, P., Pascuzzo, A., 2021a. Crack propagation under thermo-mechanical loadings based on moving mesh strategy. Theor. Appl. Fract. Mech. 114, 103033. Greco, F., Leonetti, L., De Maio, U., Rudykh, S., Pranno, A., 2021b. Macro- and micro-instabilities in incompressible bioinspired composite materials with nacre-like microstructure. Compos. Struct. 269, 114004. Greco, F., Leonetti, L., Lonetti, P., Luciano, R., Pranno, A., 2020a. A multiscale analysis of instability-induced failure mechanisms in fiber reinforced composite structures via alternative modeling approaches. Compos. Struct. 251, 112529. Greco, F., Leonetti, L., Luciano, R., 2015. A multiscale model for the numerical simulation of the anchor bolt pull-out test in lightweight aggregate concrete. Constr. Build. Mater. 95, 860–874. Greco, F., Leonetti, L., Medaglia, C.M., Penna, R., Pranno, A., 2018a. Nonlinear compressive failure analysis of biaxially loaded fiber reinforced materials. Compos. Part B Eng. 147, 240–251. References Abid, N., Mirkhalaf, M., Barthelat, F., 2018. Discrete-element modeling of nacre-like materials: Effects of random microstructures on strain localization and mechanical performance. J. Mech. Phys. Solids 112, 385–402.