Numerical Analysis of Interfacial Bond Behavior of Externally Bonded FRP-to-Concrete Joints
Publication: Journal of Composites for Construction
Volume 20, Issue 5
Abstract
Due to the complexity and difficulty involved, the interfacial bond-slip relationship of externally bonded (EB) fiber-reinforced polymer (FRP)-to-concrete joints has been investigated, mainly through experimental testing. This work investigates the interfacial behavior using the finite-element method (FEM). Damage plasticity theory is employed to model concrete material and the pull-off test of EB-FRP-to-concrete joints is simulated by FEM to study the interfacial behavior. Debonding process, failure mechanism, local bond strength distribution, and characteristics of the local bond-slip relationship are examined. It is found that the local bond-slip relationship has a shape different from all existing bond-slip models. However, such change in shape does not make a significant difference to the global interfacial load-slip response.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The work described in this paper was fully supported by Research Grant Council, Hong Kong Special Administrative Zone, China (Project No. CityU124113) and the National Natural Science Foundation of China (Grant No. 51378449).
References
ABAQUS. [Computer software]. Dassault Systèmes Simulia, Providence, RI.
ACI (American Concrete Institute). (2008). “Building code requirements for structural concrete and commentary.”, Farmington Hills, MI.
Ali-Ahmad, M., Subramaniam, K., and Ghosn, M. (2006). “Experimental investigation and fracture analysis of debonding between concrete and FRP sheets.” J. Eng. Mech., 914–923.
Ayman, M. (2003). “Experimental and numerical analysis of FRP sheets bonded to concrete.” Ph.D. thesis, Univ. of Alberta, Edmonton, Canada.
Benvenuti, E., Vitarelli, O., and Tralli, A. (2012). “Delamination of FRP-reinforced concrete by means of an extended finite element formulation.” Compos. Part B Eng., 43(8), 3258–3269.
Biolzi, L., Ghittoni, C., Fedele, R., and Rosati, G. (2013). “Experimental and theoretical issues in FRP-concrete bonding.” Constr. Build. Mater., 41, 182–190.
Camata, G., Spacone, E., Al-Mahaidi, R., and Saouma, V. (2004). “Analysis of test specimens for cohesive near-bond failure of fiber-reinforced polymer-plated concrete.” J. Compos. Constr., 528–538.
Carloni, C., and Subramaniam, K. V. (2010). “Direct determination of cohesive stress transfer during debonding of FRP from concrete.” Compos. Struct., 93(1), 184–192.
Carrara, P., Ferretti, D., Freddi, F., and Rosati, G. (2011). “Shear tests of carbon fiber plates bonded to concrete with control of snap-back.” Eng. Fract. Mech., 78(15), 2663–2678.
CEB-FIP (Euro-International Committee for Concrete-International Federation for Prestressing). (1993). CEB-FIP model code 1990, Thomas Telford, London.
Chajes, M. J., Finch, W. W., Jr., Januszka, T. F., and Thomson, T. A. Jr. (1996). “Bond and force transfer of composite-material plates bonded to concrete.” ACI Struct. J., 93(2), 208–217.
Chen, G. M., Chen, J. F., and Teng., J. G. (2012). “On the finite element modelling of RC beams shear-strengthened with FRP.” Constr. Build. Mater., 32, 13–26.
Chen, G. M., Teng, J. G., and Chen, J. F. (2011). “Finite-element modeling of intermediate crack debonding in FRP-plated RC beams.” J. Compos. Constr., 339–353.
Chen, G. M., Teng, J. G., Chen, J. F., and Xiao, Q. G. (2015). “Finite element modeling of debonding failures in FRP-strengthened RC beams: A dynamic approach.” Comput. Struct., 158, 167–183.
Chen, J. F., and Pan, W. K. (2006). “Three dimensional stress distribution in FRP-to-concrete bond test specimens.” Constr. Build. Mater., 20(1–2), 46–58.
Chen, J. F., and Teng, J. G. (2001). “Anchorage strength models for FRP and steel plates bonded to concrete.” J. Struct. Eng., 784–791.
Chen, W. F. (1982). Plasticity in reinforced concrete, McGraw-Hill, New York.
Contrafatto, L., and Cuomo, M. (2006). “A framework of elastic-plastic damaging model for concrete under multiaxial stress states.” Int. J. Plast., 22(12), 2272–2300.
Coronado, C. A., and Lopez, M. M. (2007). “Damage approach for the prediction of debonding failure on concrete elements strengthened with FRP.” J. Compos. Constr., 391–400.
Coronado, C. A., and Lopez, M. M. (2010). “Numerical modeling of concrete-FRP debonding using a crack band approach.” J. Compos. Constr., 11–21.
Dai, J. G., Gao, W. Y., and Teng, J. G. (2013). “Bond-slip model for FRP laminates externally bonded to concrete at elevated temperature.” J. Compos. Constr., 217–228.
Dai, J. G., and Ueda, T. (2003). “Local bond stress slip relations for FRP sheets-concrete interfaces.” Proc., 6th Int. Symp. on FRP Reinforcement for Concrete Structures (FRPRCS-6), World Scientific, Singapore, 8–10.
Dai, J. G., Ueda, T., and Sato, Y. (2005). “Development of the nonlinear bond stress-slip model of fiber reinforced plastics sheet-concrete interfaces with a simple method.” J. Compos. Constr., 52–62.
Dai, J. G., Ueda, T., and Sato, Y. (2006). “Unified analytical approaches for determining shear bond characteristics of FRP-concrete interfaces through pullout tests.” J. Adv. Concr. Technol., 4(1), 133–145.
Diab, H., and Wu, Z. (2007). “Nonlinear constitutive model for time-dependent behavior of FRP-concrete interface.” Compos. Sci. Technol., 67(11-12), 2323–2333.
Ferracuti, B., Savoia, M., and Mazzotti, C. (2007). “Interface law for FRP—Concrete delamination.” Compos. Struct., 80(4), 523–531.
Hordijk, D. (1991). Local approach to fatigue of concrete, Delft Univ. of Technology, Delft, Netherlands.
Ko, H., and Yuichi, S. (2007). “Bond stress-slip relationship between FRP sheet and concrete under cyclic load.” J. Compos. Constr., 419–426.
Lee, J., and Fenves, G. L. (1998). “Plastic-damage model for cyclic loading of concrete structures.” J. Eng. Mech., 892–900.
Liu, K. (2011). “Computational modeling, experimental and theoretical study on bond behaviors of hybrid-bonded FRP strengthened concrete structures.” Ph.D. thesis, City Univ. of Hong Kong, Hong Kong.
Liu, K., and Wu, Y. F. (2012). “Analytical identification of bond-slip relationship of EB-FRP joints.” Compos. Part B Eng., 43(4), 1955–1963.
Lu, X. Z., Jiang, J. J., Teng, J. G., and Ye, L. P. (2006). “Finite element simulation of debonding in FRP-to-concrete bonded joints.” Constr. Build. Mater., 20(6), 412–424.
Lu, X. Z., Teng, J. G., Ye, L. P., and Jiang, J. J. (2005a). “Bond-slip models for FRP sheets/plates bonded to concrete.” Eng. Struct., 27(6), 920–937.
Lu, X. Z., Ye, L. P., Teng, J. G., and Jiang, J. J. (2005b). “Meso-scale finite element model for FRP sheets/plates bonded to concrete.” Eng. Struct., 27(4), 564–575.
Lubliner, J., Oliver J., Oller, S., Onate, E., (1989). “A plastic-damage model for concrete.” Int. J. Solids Struct., 25(3), 299–326.
Mazzotti, C., Savoia, M., and Ferracuti, B. (2009). “A new single-shear set-up for stable debonding of FRP-concrete joints.” Constr. Build. Mater., 23(4), 1529–1537.
Monti, G., Renzelli, M., and Luciani, P. (2003). “FRP adhesion in uncracked and cracked concrete zones.” Proc., 6th Int. Symp. on FRP Reinforcement for Concrete Structures (FRPRCS-6), World Scientific, Singapore, 183–192.
Nakaba, K., Kanakubo, T., Furuta, T., and Yoshizawa, H. (2001). “Bond behavior between fiber-reinforced polymer laminates and concrete.” ACI Struct. J., 98(3), 359–367.
Neubauer, U., and Rostasy, F. S. (1999). “Bond failure of concrete fiber reinforced polymer plates at inclined cracks experiments and fracture mechanics model.” ACI Special Publ., 188, 369–382.
Pan, J., and Leung, C. K. Y. (2007). “Effect of concrete composition on FRP/concrete bond capacity.” J. Compos. Constr., 611–618.
Pan, J., and Wu, Y. F. (2014). “Analytical modeling of bond behavior between FRP plate and concrete.” Compos. Part B Eng., 61, 17–25.
Pellegrino, C., and Modena, C. (2008). “Bond-slip relationships between FRP sheets and concrete.” 4th Int. Conf. on FRP Composites in Civil Engineering (CICE2008), International Institute for FRP in Construction, Zurich, Switzerland, 419–426.
Pellegrino, C., Tinazzi, D., and Modena, C. (2008). “Experimental study on bond behavior between concrete and FRP reinforcement.” J. Compos. Constr., 180–189.
Pham, H. B., and Al-Mahaidi, R. (2007). “Modelling of CFRP-concrete shear-lap tests.” Constr. Build. Mater., 21(4), 727–735.
Pham, H. B., Al-Mahaidi, R., and Saouma, V. (2006). “Modelling of CFRP-concrete bond using smeared and discrete cracks.” Compos. Struct., 75(1–4), 145–150.
Saenz, L. P. (1964). “Discussion of “Equation for the stress-strain curve of concrete” by Desayi and Krishnan.” ACI J., 61(9), 1229–1235.
Salomoni, V., Mazzucco, G., Pellegrino, C., and Majorana, C. (2011). “Three-dimensional modelling of bond behaviour between concrete and FRP reinforcement.” Eng. Comput., 28(1), 5–29.
Savioa, M., Farracuti, B., and Mazzotti, D. (2003). “Non-linear bond-slip law for FRP-concrete interface.” Proc., 6th Int. Symp. on FRP Reinforcement for Concrete Structures, World Scientific Publications, Singapore, 163–172.
Subramaniam, K. V., Carloni, C., and Nobile, L. (2011). “An understanding of the width effect in FRP-concrete debonding.” Strain, 47(2), 127–137.
Sutton, M. A., Wolters, W. J., Peters, W. H., Ranson, W. F., and McNeill, S. R. (1983). “Determination of displacements using an improved digital correlation method.” Image Vision Comput., 1(3), 133–139.
Täljsten, B. (1997). “Defining anchor lengths of steel and CFRP plates bonded to concrete.” Int. J. Adhes. Adhes., 17(4), 319–327.
Tao, Y., and Chen, J. (2014). “Concrete damage plasticity model for modeling FRP-to-concrete bond behavior.” J. Compos. Constr., 04014026.
Teng, J. G., Chen, J. F., Smith, S. T., and Lam, L. (2002). FRP strengthened RC structures, Wiley, Chichester, U.K.
Ueda, T., and Dai, J. (2005a). “Interface bond between FRP sheets and concrete substrates: properties, numerical modeling and roles in member behaviour.” Progr. Struct. Eng. Mater., 7(1), 27–43.
Ueda, T., and Dai, J. G. (2005b). “Interface of fiber reinforced polymer laminates externally bonded to concrete substrate: From test methods to bond modeling.” Proc., Int. Symp. on Bond Behaviour of FRP in Structures (BBFS 2005), J. F. Chen and J. G. Teng, eds., International Institute for FRP in Construction, Hong Kong, 23–34.
Wu, Y., He, L., and Bank, L. (2015). “Bond-test protocol for plate-to-concrete interface involving all mechanisms.” J. Compos. Constr., .
Wu, Y., Yun, Y., Wei, Y., and Zhou, Y. (2014). “Effect of predamage on the stress-strain relationship of confined concrete under monotonic loading.” J. Struct. Eng., .
Wu, Y. F., and Jiang, C. (2013). “Quantification of bond-slip relationship for externally bonded FRP-to-concrete joints.” J. Compos. Constr., 673–686.
Wu, Y. F., Xu, X., Sun, J., and Jiang, C. (2012). “Analytical solution for the bond strength of externally bonded reinforcement.” Compos. Struct., 94(11), 3232–3239.
Xu, T., He, Z. J., Tang, C. A., Zhu, W. C., and Ranjith, P. G. (2015). “Finite element analysis of width effect in interface debonding of FRP plate bonded to concrete.” Finite Elem. Anal. Des., 93, 30–41.
Yao, J., Teng, J. G., and Chen, J. F. (2005). “Experimental study on FRP-to-concrete bonded joints.” Compos. Part B Eng., 36(2), 99–113.
Yu, R. C., and Ruiz, G. (2006). “Explicit finite element modeling of static crack propagation in reinforced concrete.” Int. J. Fract., 141(3-4), 357–372.
Yu, T., Teng, J. G., Wong, Y. L., and Dong, S. L. (2010). “Finite element modeling of confined concrete—II: Plastic-damage model.” Eng. Struct., 32(3), 680–691.
Yuan, H., Teng, J. G., Seracino, R., Wu, Z. S., and Yao, J. (2004). “Full-range behavior of FRP-to-concrete bonded joints.” Eng. Struct., 26(5), 553–565.
Yun, Y., Wu, Y. F., and Tang, W. C. (2008). “Performance of FRP bonding systems under fatigue loading.” Eng. Struct., 30(11), 3129–3140.
Zhang, L., Wang, W., Harries, K., and Tian, J. (2015). “Bonding behavior of wet-bonded GFRP-concrete interface.” J. Compos. Constr., .
Zhao, X. M., Wu, Y. F., and Leung, A. Y. T. (2012). “Analyses of plastic hinge regions in reinforced concrete beams under monotonic loading.” Eng. Struct., 34, 466–482.
Zhou, Y. W., Wu, Y. F., and Yun, Y. C. (2010). “Analytical modeling of the bond-slip relationship at FRP-concrete interfaces for adhesively-bonded joints.” Compos. Part B Eng., 41(6), 423–433.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 20 • Issue 5 • October 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Sep 25, 2015
Accepted: Dec 10, 2015
Published online: Mar 10, 2016
Discussion open until: Aug 10, 2016
Published in print: Oct 1, 2016
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.