Loading Rate Effect on FRP-to-Concrete Bond Behaviour

Abstract:

This paper presents a preliminary finite element study on the effects of strain rate on the FRP-to-concrete bond behaviour using the K&C concrete damage model in LS-DYNA Explicit. The developed FE model uses the first-order eight-node hexahedron 3D solid element with one integration point and a sub-millimetre mesh. Results show that the model can simulate the static FRP-to-concrete bond behaviour with good accuracy and mesh objectivity. It also shows that the loading rate has significant effects on the bond behaviour.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 3571-3576
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.3571
• Online since: May 2011
• Authors: Xiao Qin Li, Zhen Jun Yang, Jian Fei Chen, Yong Lu
• Keywords: Concrete, Dynamic Increasing Factor (DIF), Fiber Reinforced Polymer (FRP), Loading Rate, Pull-Off Test

References

[1] Buchan, P.A. & Chen, J.F. 2006. "Blast resistance of FRP composites and polymer strengthened concrete and masonry structures – a state-of-the-art review". Composites: Part B 38:509–522.

DOI: 10.1016/j.compositesb.2006.07.009

[2] CEB-FIP. 1993. Model Code 90. Lausanne.

[3] Chen, J.F. & Teng, J.G. 2001. "Anchorage strength models for FRP and steel plates bonded to concrete". Journal of Structural Engineering, ASCE 127(7):784–791.

DOI: 10.1061/(asce)0733-9445(2001)127:7(784)

[4] Chen, G.M., Teng, J.G. & Chen, J.F. 2009. "Finite element simulation of IC debonding in FRP-plated RC beams: a dynamic approach", Proceedings of the 9th International Symposium on Fibre Reinforced Polymer for Concrete Structures (FRPRCS9), 13-15 July, Sydney, Australia.

DOI: 10.1142/9789812704863_0016

[5] Li, X.Q., Chen, J.F. & Lu, Y. 2010. "Meso-scale modeling of FRP-to-concrete bond behaviour using LS-DYNA", Proceedings of the 5th international conference on FRP composites in civil engineering (CICE 2010), September 27-29, Beijing, China, 494-498.

DOI: 10.1007/978-3-642-17487-2_106

[6] Lu, X.Z., Ye, L.P., Teng, J.G. & Jiang, J.J. 2004. "Mesco-scale finite element model for FRP sheets/plates bonded to concrete", Engineering structures, 27:564-575.

DOI: 10.1016/j.engstruct.2004.11.015

[7] Malvar, L.J., Crawford, J.E., Wesevich, J.W. & Simons, D. 1997. "A plasticity concrete material model for DYNA3D", International Journal of Impact Engineering, 19(9-10): 847-873.

DOI: 10.1016/s0734-743x(97)00023-7

[8] Malvar, L.J.& Crawford, J.E. 1998. "Dynamic increasing factors for concrete", Twenty-Eighth DDESB Seminar, Orlando, FL, August.

[9] Schwer, L.E. & Malvar, L.J. 2005. "Simplified concrete modeling with *mat_concrete_damage_rel3", JRI LS-Dyna User Week, Nagoya, Japan.

[10] Wu, Z.S., Yuan, H., Yoshizawa, H. & Kanakubo, T. 2001. "Experimental/analytical study on interfacial fracture energy and fracture propagation along FRP-concrete interface". ACI International SP-201-8, 133–152.

DOI: 10.14359/10762