Effect of Impact Load on the Bond between Steel and CFRP Laminate
Carbon fiber reinforced polymersarewidely used to strengthen steel structural elements. These structural elements are normally subjected to static, dynamic and fatigue loadings during their life-time. CFRP laminate is commonly used to strengthen these structures under the subjected loads. A number of studies have focused on the characteristics of CFRP sheets bonded to steel members under static, dynamic and fatigue loadings. However, there is a gap in understanding the bonding behavior between CFRP laminates and steel members under impact loading. This paper shows the effect of high load rates on this bond. CFRP laminate CFK 150/2000 was used to strengthen steel joints using Araldite 420 epoxy. The results show that applying a high load rate significantly affects the bond strength but has little influence on the effective bond length.
[1] L. C. Hollaway and P. R. Head, "The future for the advanced polymer
composite in the civil infrastructure," "Chapter 9 in Advanced Polymer
Composites and Polymers in the Civil Infrastructure, Oxford: Elsevier
Science, 2001, pp. 287-292.
[2] S. Xia and J. Teng, "Behaviour of FRP-to-steel bonded joints," in
Proceedings of the international symposium on bond behaviour of FRP
in structures, 2005, pp. 419-26.
[3] S. Fawzia, X. L. Zhao, R. Al-Mahaidi, and S. Rizkalla, "Bond
characteristics between cfrp and steel plates in double strap joints,"
Advanced Steel Construction, vol. 1, pp. 17-27, 2005.
[4] C. Wu, X. Zhao, W. Hui Duan, and R. Al-Mahaidi, "Bond
characteristics between ultra high modulus CFRP laminates and steel,"
Thin-Walled Structures, vol. 51, pp. 147-157, 2, 2012.
[5] Y. Yu, S. Chiew, and C. Lee, "Bond failure of steel beams strengthened
with FRP laminates–Part 2: Verification," Composites Part B:
Engineering, vol. 42, pp. 1122-1134, 2011.
[6] Y. J. Kim and K. A. Harries, "Fatigue behavior of damaged steel beams
repaired with CFRP strips," Engineering Structures, vol. 33, pp. 1491-
1502, 2011.
[7] M. Bocciarelli, P. Colombi, G. Fava, and C. Poggi, "Fatigue
performance of tensile steel members strengthened with CFRP plates,"
Composite Structures, vol. 87, pp. 334-343, 2, 2009.
[8] H. A. Al-Zubaidy, X. L. Zhao, and R. Al-Mahaidi, "Effect of Impact
Tensile Load on Strength of CFRP Bonded Steel Plate Joints," Procedia
Engineering, vol. 14, pp. 1312-1317, 2011.
[9] H. A.-A. B. Al-Zubaidy, "Behaviour of bond between CFRP sheet and
steel under impact tensile loading," ed.
[10] X.-L. Zhao and L. Zhang, "State-of-the-art review on FRP strengthened
steel structures," Engineering Structures, vol. 29, pp. 1808-1823, 2007.
[11] H. Al-Zubaidy, X.-L. Zhao, and R. Al-Mihaidi, "Mechanical Behaviour
of Normal Modulus Carbon Fibre Reinforced Polymer (CFRP) and
Epoxy under Impact Tensile Loads," Procedia Engineering, vol. 10, pp.
2453-2458, 2011.
[12] T. Yokoyama and H. Shimizu, "Evaluation of impact shear strength of
adhesive joints with the split Hopkinson bar," JSME International
Journal. Series A, Solid Mechanics and Material Engineering, vol. 41,
pp. 503-509, 1998.
[13] S. L. Raykhere, P. Kumar, R. Singh, and V. Parameswaran, "Dynamic
shear strength of adhesive joints made of metallic and composite
adherents," Materials & Design, vol. 31, pp. 2102-2109, 2010.
[1] L. C. Hollaway and P. R. Head, "The future for the advanced polymer
composite in the civil infrastructure," "Chapter 9 in Advanced Polymer
Composites and Polymers in the Civil Infrastructure, Oxford: Elsevier
Science, 2001, pp. 287-292.
[2] S. Xia and J. Teng, "Behaviour of FRP-to-steel bonded joints," in
Proceedings of the international symposium on bond behaviour of FRP
in structures, 2005, pp. 419-26.
[3] S. Fawzia, X. L. Zhao, R. Al-Mahaidi, and S. Rizkalla, "Bond
characteristics between cfrp and steel plates in double strap joints,"
Advanced Steel Construction, vol. 1, pp. 17-27, 2005.
[4] C. Wu, X. Zhao, W. Hui Duan, and R. Al-Mahaidi, "Bond
characteristics between ultra high modulus CFRP laminates and steel,"
Thin-Walled Structures, vol. 51, pp. 147-157, 2, 2012.
[5] Y. Yu, S. Chiew, and C. Lee, "Bond failure of steel beams strengthened
with FRP laminates–Part 2: Verification," Composites Part B:
Engineering, vol. 42, pp. 1122-1134, 2011.
[6] Y. J. Kim and K. A. Harries, "Fatigue behavior of damaged steel beams
repaired with CFRP strips," Engineering Structures, vol. 33, pp. 1491-
1502, 2011.
[7] M. Bocciarelli, P. Colombi, G. Fava, and C. Poggi, "Fatigue
performance of tensile steel members strengthened with CFRP plates,"
Composite Structures, vol. 87, pp. 334-343, 2, 2009.
[8] H. A. Al-Zubaidy, X. L. Zhao, and R. Al-Mahaidi, "Effect of Impact
Tensile Load on Strength of CFRP Bonded Steel Plate Joints," Procedia
Engineering, vol. 14, pp. 1312-1317, 2011.
[9] H. A.-A. B. Al-Zubaidy, "Behaviour of bond between CFRP sheet and
steel under impact tensile loading," ed.
[10] X.-L. Zhao and L. Zhang, "State-of-the-art review on FRP strengthened
steel structures," Engineering Structures, vol. 29, pp. 1808-1823, 2007.
[11] H. Al-Zubaidy, X.-L. Zhao, and R. Al-Mihaidi, "Mechanical Behaviour
of Normal Modulus Carbon Fibre Reinforced Polymer (CFRP) and
Epoxy under Impact Tensile Loads," Procedia Engineering, vol. 10, pp.
2453-2458, 2011.
[12] T. Yokoyama and H. Shimizu, "Evaluation of impact shear strength of
adhesive joints with the split Hopkinson bar," JSME International
Journal. Series A, Solid Mechanics and Material Engineering, vol. 41,
pp. 503-509, 1998.
[13] S. L. Raykhere, P. Kumar, R. Singh, and V. Parameswaran, "Dynamic
shear strength of adhesive joints made of metallic and composite
adherents," Materials & Design, vol. 31, pp. 2102-2109, 2010.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:68833", author = "A. Al-Mosawe and R. Al-Mahaidi", title = "Effect of Impact Load on the Bond between Steel and CFRP Laminate", abstract = "Carbon fiber reinforced polymersarewidely used to strengthen steel structural elements. These structural elements are normally subjected to static, dynamic and fatigue loadings during their life-time. CFRP laminate is commonly used to strengthen these structures under the subjected loads. A number of studies have focused on the characteristics of CFRP sheets bonded to steel members under static, dynamic and fatigue loadings. However, there is a gap in understanding the bonding behavior between CFRP laminates and steel members under impact loading. This paper shows the effect of high load rates on this bond. CFRP laminate CFK 150/2000 was used to strengthen steel joints using Araldite 420 epoxy. The results show that applying a high load rate significantly affects the bond strength but has little influence on the effective bond length.
", keywords = "Adhesively-bonded joints, Bond strength, CFRP laminate, Impact tensile loading.", volume = "9", number = "1", pages = "84-4", }
