A mechanical model for FRP-strengthened beams in bending
Author and affiliation details
SBS. Bennati Corresponding authorUniversità di Pisa, Dipartimento di Ingegneria Civile – Strutture, Largo Lucio Lazzarino, 56126 Pisas.bennati@ing.unipi.it
We analyse the problem of a simply supported beam, strengthened with a fibre-reinforced polymer (FRP) strip bonded to its intrados and subjected to bending couples applied to its end sections. A mechanical model is proposed, whereby the beam and FRP strip are modelled according to classical beam theory, while the adhesive and its neighbouring layers are modelled as an interface having a piecewise linear constitutive law defined over three intervals (elastic response – softening response – debonding). The model is described by a set of differential equations with appropriate boundary conditions. An analytical solution to the problem is determined, including explicit expressions for the internal forces, displacements and interfacial stresses. The model predicts an overall non-linear mechanical response for the strengthened beam, ranging over several stages: from linearly elastic behaviour to damage, until the complete detachment of the FRP reinforcement.
Bennati, S., Dardano, N., & Valvo, P. S. (2012). A mechanical model for FRP-strengthened beams in bending. Fracture and Structural Integrity, 6(22), pages 39–55. https://doi.org/10.3221/IGF-ESIS.22.06
IEEE
S. Bennati, N. Dardano, and P. S. Valvo, “A mechanical model for FRP-strengthened beams in bending,” Fracture and Structural Integrity, vol. 6, no. 22, pp. pages 39–55, 2012, doi: 10.3221/IGF-ESIS.22.06.
MLA
Bennati, S., et al. “A mechanical model for FRP-strengthened beams in bending.” Fracture and Structural Integrity, vol. 6, no. 22, 2012, pp. pages 39–55. https://doi.org/10.3221/IGF-ESIS.22.06.
Chicago
Bennati, S., N. Dardano, and P. S. Valvo. 2012. “A mechanical model for FRP-strengthened beams in bending.” Fracture and Structural Integrity 6 (22): pages 39–55. https://doi.org/10.3221/IGF-ESIS.22.06.
Harvard
Bennati, S., Dardano, N. and Valvo, P.S. (2012) ‘A mechanical model for FRP-strengthened beams in bending’, Fracture and Structural Integrity, 6(22), pp. pages 39–55. doi: 10.3221/IGF-ESIS.22.06.
Vancouver
Bennati S, Dardano N, Valvo PS. A mechanical model for FRP-strengthened beams in bending. Fracture and Structural Integrity. 2012;6(22):pages 39-55. doi:10.3221/IGF-ESIS.22.06
BibTeX
@article{bennati2012,
author = {Bennati, S. and Dardano, N. and Valvo, P. S.},
title = {A mechanical model for FRP-strengthened beams in bending},
journal = {Fracture and Structural Integrity},
year = {2012},
volume = {6},
number = {22},
pages = {pages 39--55},
doi = {10.3221/IGF-ESIS.22.06},
url = {https://doi.org/10.3221/IGF-ESIS.22.06},
issn = {1971-8993}
}
RIS
TY - JOUR
AU - Bennati, S.
AU - Dardano, N.
AU - Valvo, P. S.
TI - A mechanical model for FRP-strengthened beams in bending
JO - Fracture and Structural Integrity
T2 - Fracture and Structural Integrity
PY - 2012
DA - 2012/09/30
VL - 6
IS - 22
SP - pages 39
EP - 55
DO - 10.3221/IGF-ESIS.22.06
UR - https://doi.org/10.3221/IGF-ESIS.22.06
SN - 1971-8993
ER -
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