Nonlinear Deterioration Model for Bond Interfacial Fracture Energy of FRP-Concrete Joints in Moist Environments
Publication: Journal of Composites for Construction
Volume 13, Issue 1
Abstract
This study proposed a bond mechanism based deterioration model of bond interfacial fracture energy for fiber-reinforced polymer (FRP)-concrete joints in moist environments. The bond interface region relative humidity (IRRH) in a moist environment was correlated to the bond fracture energy in this deterioration model. The IRRH-dependent interface separation tractions were derived in the frame of a cohesive zone model. Such an IRRH-dependent interface separation-traction law was simulated by a series of nonlinear interface elements attached to the bond interface to calculate the macroscopic load-displacement curves for the modified double cantilever beam (MDCB) specimens. Through moisture diffusion analysis, IRRH was determined as a function of the moisture exposure time for given specimen dimension and environmental RH. Using IRRH as the bridge, the time-dependent load-displacement curves of the MDCB specimens were obtained. The good agreement with the experimental data indicated that the model worked well. The approach developed in this study can be used to simulate and predict the durability of the bond between the FRP and concrete in moist environments.
Get full access to this article
View all available purchase options and get full access to this article.
References
Au, C., and Buyukozturk, O. (2006). “Peel and shear fracture characterization of debonding in FRP plated concrete affected by moisture.” J. Compos. Constr., 10(1), 35–47.
Bank, L. C. (2006). Composites for construction: Structural design with FRP materials, Wiley, New York.
Bazant, Z. P., and Najjar, L. J. (1972). “Nonlinear water diffusion in nonsaturated concrete.” Mater. Constr. (Paris), 5(25), 3–20.
Bizindavyi, L., and Neale, K. W. (1999). “Transfer lengths and bond strengths for composites bonded to concrete.” J. Compos. Constr., 3(4), 153–160.
Chajes, M. J., Finch, W. W., Januszka, T. F., and Thomson, T. A. (1996). “Bond and force transfer of composite material plates bonded to concrete.” ACI Struct. J., 93(2), 208–217.
Chajes, M. J., Thomson, T. A., Jr., and Farschman, C. A. (1995). “Durability of concrete beams externally reinforced with composite fabrics.” Constr. Build. Mater., 9(3), 141–148.
Chen, J. F., and Teng, J. G. (2001). “Anchorage strength models for FRP and steel plates bonded to concrete.” J. Struct. Eng., 127(7), 784–791.
Dai, J. G., Sato, Y., and Ueda, T. (2005). “Development of nonlinear bond stress slip model with a simple method.” J. Compos. Constr., 9(1), 52–62.
Davalos, J. F., Kodkani, S. S., Ray, I., and Boyajian, D. M. (2005). “A fracture mechanics approach for interface durability of bonded FRP to concrete.” Proc., 7th Int. Symp. on Fiber-Reinforced (FRP) Polymer Reinforcement for Concrete Structures, Kansas City, Mo., ACI, Farmingdale Hills, Mich., 1465–1480.
Dugdale, D. S. (1960). “Yielding of steel sheets containing slits.” J. Mech. Phys. Solids, 8(2), 100–104.
Garden, H. N., and Hollaway, L. C. (1998). “An experimental study of the influence of plate end anchorage of carbon fiber composite plates used to strengthen reinforced concrete beams.” Compos. Struct., 42(2), 175–188.
Grace, N. F., and Singh, S. B. (2005). “Durability evaluation of carbon fiber-reinforced polymer strengthened concrete beams: Experimental study and design.” ACI Struct. J., 102(1), 40–53.
Karbhari, V. M., Engineer, M., and Eckel II, D. A. (1997). “On the durability of composite rehabilitation schemes for concrete: Use of a peel test.” J. Mater. Sci., 32, 147–156.
Karbhari, V. M., and Zhao, L. (1998). “Issues related to composite plating and environmental exposure effects on composite-concrete interface in external strengthening.” Compos. Struct., 40(3–4), 293–304.
Khalifa, A., and Nanni, A. (2000). “Improving shear capacity of existing RC T-section beams using CFRP composites.” Cem. Concr. Compos., 22, 165–174.
Leung, H., Balendran, R., and Lim, C. (2001). “Flexural capacity of strengthened concrete beam exposed to different environmental conditions.” Proc., Int. Conf. of FRP Composites in Civil Engineering, Hong Kong, Elsevier Science, Oxford, U.K., 1597–1606.
Mukhopadhyaya, P., Swamy, R. N., and Lynsdale, C. J. (1998). “Influence of aggressive exposure conditions on the behavior of adhesive bonded concrete-GFRP joints.” Constr. Build. Mater., 12(8), 427–446.
Nguyen, T., Byrd, W. E., Alsheh, D., Aouadi, K., and Chin, J. W. (1998). “Water at the polymer/substrate interface and its role in the durability of polymer/glass fiber composites.” Durability of Fibre Reinforced Polymer (FRP) Composites for Construction (CDCC’98), Proc., 1st Int. Conf., Canada, B. Benmokrane and H. Rahman, eds., 451–462.
Ouyang, Z., and Wan, B., (2006). “Deterioration mechanism of bond between CFRP plate and concrete in moisture environment.” Proc., 3rd Int. Conf. on FRP Composites in Civil Engineering (CICE 2006), Miami, A. Mirmiran and A. Nanni, eds., 263–266.
Ouyang, Z., and Wan, B. (2008a). “Experimental and numerical study of water effect on bond fracture energy between FRP and concrete in moist environments.” J. Reinf. Plast. Compos., 27(2), 205–223.
Ouyang, Z., and Wan, B. (2008b). “Modeling of moisture diffusion in externally FRP strengthened concrete specimens.” J. Compos. Constr. 12(4), 425–434.
Rose, J. H., Smith, J. R., and Ferrante, J. (1983). “Universal features of bonding in metals.” Phys. Rev. B, 28(4), 1835–1845.
Taljsten, B. (1997). “Strengthening of beams by plate bonding.” J. Mater. Civ. Eng., 9(4), 206–212.
Teng, J. G., Chen, J. F., Smith, S. T. and Lam, L. (2002). FRP strengthened RC structures, Wiley, Chichester, U.K.
Toutanji, H. A., and Gomez, W. (1997). “Durability characteristics of concrete beams externally bonded with FRP composite sheets.” Cem. Concr. Compos., 19, 351–358.
Ueda, T., Sato, Y., and Asano, Y. (1999). “Experimental study on bond strength of continuous carbon fiber sheets.” Proc., 4th Int. Symp. on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures, SP-188, ACI, Farmington Hills, Mich., 407–416.
Wan, B., Petrou, M. F., and Harries, K. A. (2006). “Effect of the presence of water on the durability of bond between CFRP and concrete.” J. Reinf. Plast. Compos., 25(8), 875–890.
Wan, B., Sutton, M. A., Petrou, M. F., Harries, K. A., and Li, N. (2004). “Investigation of bond between fiber reinforced polymer and concrete undergoing global mixed mode I/II loading.” J. Eng. Mech., 130(12), 1467–1475.
Wei, Y., and Hutchinson, J. W. (1999). “Models of interface separation accompanied by plastic dissipation at multiple scales.” Int. J. Fract., 95(1), 1–17.
Wu, Z. S., Yuan, H., and Niu, H. D. (2002). “Stress transfer and fracture propagation in different kinds of adhesive joints.” J. Eng. Mech., 128(5), 562–573.
Xu, X. P., and Needleman, A. (1994). “Numerical simulations of fast crack growth in brittle solids.” J. Mech. Phys. Solids, 42(9), 1397–1434.
Yang, Q. D., Thouless, M. D., and Ward, S. W. (2000). “Analysis of the symmetrical -peel test with extensive plastic deformation.” J. Adhes., 72(12), 115–132.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 13 • Issue 1 • February 2009
Pages: 53 - 63
Copyright
© 2009 ASCE.
History
Received: Jan 25, 2008
Accepted: Aug 11, 2008
Published online: Feb 1, 2009
Published in print: Feb 2009
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.