Predictive Capability of a Finite Element Micro-Mechanical Model for Masonry Elements Reinforced Using CFRP

Abstract:

Different commercial Finite Element Codes proved to be able to describe the mechanical behavior of masonry materials externally reinforced by means of Carbon Fiber Reinforced Polymers (CFRP); the behavior of fracturing materials, characterized by low tensile strength, with adhered strips can be reproduced relying on parameters based on fracture mechanics and the theories of adhesion.In this report the comparison is made of previous experimental test results with numerical analysis, carried out on masonry panels reinforced with CFRP strips and subjected to out of plane actions. The comparison is especially addressed to the evaluation of the post peak branch; in addition to the slopes of the diagram in the pre-critic phase, available kinematic ductility and energy shares both prior and after the peak load were considered in order to interpret the capability of the micro-mechanical model implemented in the FEM Code to account for the local phenomena influencing the interaction between masonry and FRP strengthening systems.

• Periodical: Key Engineering Materials (Volume 916)
• Pages: 186-192
• DOI: https://doi.org/10.4028/p-jco79d
• Online since: April 2022
• Authors: Mario Fagone, Giovanna Ranocchiai*, Tommaso Rotunno, Ernesto Grande
• Keywords: Adhesion, CFRP, Ductility, Masonry, Micro-Mechanical Modelling

References

[1] A. Hosseini, D. Mostofinejad, M. Emami, Influence of bonding technique on bond behavior of CFRP-to-clay brick masonry joints: Experimental study using particle image velocimetry (PIV), Int. J. Adhes. Adhes., 59 (2015) 27–39.

DOI: 10.1016/j.ijadhadh.2015.01.015

[2] F.G. Carozzi, A. Bellini, T. D'Antino, G. de Felice, F. Focacci, Ł. Hojdys, L. Laghi, E. Lanoye, F. Micelli, M. Panizza, C. Poggi, Experimental investigation of tensile and bond properties of Carbon-FRCM composites for strengthening masonry elements, Compos. Part B Eng., 128 (2017) 100–119.

DOI: 10.1016/j.compositesb.2017.06.018

[3] T. Rotunno, M. Fagone, E. Bertolesi, E. Grande, G. Milani, Single lap shear tests of masonry curved pillars externally strengthened by CFRP strips, Compos. Struct., 200 (2018) 434–448.

DOI: 10.1016/j.compstruct.2018.05.097

[4] E. Hamed, O. Rabinovitch, Failure characteristics of FRP-strengthened masonry walls under out-of-plane loads, Eng. Struct., 32 (2010) 2134–2145.

DOI: 10.1016/j.engstruct.2010.03.016

[5] J. Witzany, J. Brožovský, T. Čejka, K. Kroftová, J. Kubát, D. Makovička, R. Zigler, The Application of Carbon Composites in the Rehabilitation of Historic Baroque Vaults, Polymers (Basel)., 7 (2015) 2670–2689.

DOI: 10.3390/polym7121540

[6] E. Grande, G. Milani, E. Bertolesi, M. Fagone, T. Rotunno, Modeling of the Tensile Behavior FRCM Systems for Repair and Strengthening Interventions of Masonry Structures, Front. Built Environ., 6 (2020) 51.

DOI: 10.3389/fbuil.2020.00051

[7] G. Milani, M. Fagone, T. Rotunno, E. Grande, E. Bertolesi, Development of an interface numerical model for C-FRPs applied on flat and curved masonry pillars, Compos. Struct., 241 (2020) 112074.

DOI: 10.1016/j.compstruct.2020.112074

[8] E. Bertolesi, G. Milani, R. Fedele, Fast and reliable non-linear heterogeneous FE approach for the analysis of FRP-reinforced masonry arches, Compos. Part B Eng., 88 (2016) 189–200.

DOI: 10.1016/j.compositesb.2015.11.005

[9] S. Briccoli Bati, M. Fagone, T. Rotunno, Lower Bound Limit Analysis of Masonry Arches with CFRP Reinforcements: A Numerical Method, J. Compos. Constr., 17 (2013) 543–553.

DOI: 10.1061/(asce)cc.1943-5614.0000350

[10] E. Bertolesi, G. Milani, M. Fagone, T. Rotunno, E. Grande, Micro-mechanical FE numerical model for masonry curved pillars reinforced with FRP strips subjected to single lap shear tests, Compos. Struct., 201 (2018) 916–931.

DOI: 10.1016/j.compstruct.2018.06.111

[11] M. Fagone, G. Ranocchiai, Experimental investigation on out-of-plane behavior of masonry panels strengthened with CFRP sheets, Compos. Part B Eng., 150 (2018) 14–26.

DOI: 10.1016/j.compositesb.2018.05.031

[12] M. Fagone, G. Ranocchiai, An experimental analysis of the mechanical behaviour of anchored CFRP-to-masonry reinforcements loaded by out-of-plane actions, Key Eng. Mater., 747 KEM (2017) 204–211.

DOI: 10.4028/www.scientific.net/kem.747.204

[13] M. Fagone, G. Ranocchiai, On the mechanical behaviour of anchored CFRP-to-masonry reinforcements, in: C. Modena, F. da Porto, M.R. Valluzzi (Eds.), Brick Block Mason. Trends, Innov. Challenges - Proc. 16th Int. Brick Block Mason. Conf. IBMAC 2016, Taylor & Francis Group, Padova, Italy, 2016: p.387–394.

DOI: 10.1201/b21889-46

[14] Simulia Corp. Providence RI US, Abaqus Release 2017 Theory and User's manuals Dassault Systèmes, (2017).

[15] T. Rotunno, M. Fagone, G. Ranocchiai, E. Grande, An experimental-based FE micro-mechanical model for masonry elements reinforced with CFRP sheets, Submitt. to Compos. Struct., (n.d.).

DOI: 10.4028/p-jco79d