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Failure Assessment of Steel/CFRP Double Strap Joints

1
Department of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846, Iran
2
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 2b, 7491 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Metals 2017, 7(7), 255; https://doi.org/10.3390/met7070255
Received: 8 June 2017 / Revised: 25 June 2017 / Accepted: 1 July 2017 / Published: 6 July 2017
In the current study, the failure behavior of retrofitted steel structures was studied experimentally and theoretically with steel/carbon fiber reinforced polymer (CFRP) double strap joints (DSJs) under quasi-static tensile loading. A series of DSJs with different bonding lengths are also considered and examined to experimentally assess the effective bond length. To predict the failure load values of the tested specimens, a new stress-based method, namely the point stress (PS) method is proposed. Although some theoretical predictive modelling for the strength between steel/CFRP joints under various loading conditions has been presented, in this work by using the new proposed approach, one can calculate rapidly and conveniently the failure loads of the steel/CFRP specimens. Furthermore, to assess the validity of the new proposed method, further experimental data on steel/CFRP DSJs available in the open literature are predicted using the PS method. Finally, it was found that a good agreement exists between the experimental results and the theoretical predictions based on the PS method. View Full-Text
Keywords: CFRP; double strap joint; failure load prediction; finite element analysis; steel; stress-based failure method CFRP; double strap joint; failure load prediction; finite element analysis; steel; stress-based failure method
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MDPI and ACS Style

Majidi, H.R.; Razavi, S.M.J.; Berto, F. Failure Assessment of Steel/CFRP Double Strap Joints. Metals 2017, 7, 255. https://doi.org/10.3390/met7070255

AMA Style

Majidi HR, Razavi SMJ, Berto F. Failure Assessment of Steel/CFRP Double Strap Joints. Metals. 2017; 7(7):255. https://doi.org/10.3390/met7070255

Chicago/Turabian Style

Majidi, Hamid R., Seyed M.J. Razavi, and Filippo Berto. 2017. "Failure Assessment of Steel/CFRP Double Strap Joints" Metals 7, no. 7: 255. https://doi.org/10.3390/met7070255

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