Details
| Original language | English |
|---|---|
| Pages (from-to) | 190-197 |
| Number of pages | 8 |
| Journal | Engineering structures |
| Volume | 177 |
| Publication status | Published - 15 Dec 2018 |
| Externally published | Yes |
Abstract
Carbon fiber-reinforced polymer (CFRP) composites have been increasingly used in the strengthening and rehabilitation of steel structures. This paper presents an analytical model for stiffness prediction of CFRP-to-steel double strap joints. Mechanical analysis was performed to determine the shear stress and strain distributions in the bond region, which resulted in deriving a model for stiffness prediction of joints. More than 20 test results from the existing works in the literature were used to validate the proposed model. Results show that the predictions are mostly between 0.8 and 1.2 times the experimental values, with an average error of less than 10%, which demonstrates the effectiveness of the proposed model. Finally, a parametric study with respect to the bond length and the adherend stiffness ratio was performed to give a better understanding of the effect of different parameters.
Keywords
- Bonded strengthening, Carbon fiber-reinforced polymer (CFRP), Double strap joints, Steel, Stiffness prediction
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Engineering structures, Vol. 177, 15.12.2018, p. 190-197.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Analytical solution for stiffness prediction of bonded CFRP-to-steel double strap joints
AU - Li, Weijie
AU - Ghafoori, Elyas
AU - Lu, Yiyan
AU - Li, Shan
AU - Motavalli, Masoud
N1 - Funding Information: The authors wish to acknowledge the fund from National Natural Science Foundation of China (Grant no. 51578428 ) and Chinese Scholarship Council ( 201606270106 ). This paper was written when the first author was visiting the Structural Engineering Research Laboratory at the Swiss Federal Laboratories for Materials Science and Technology (Empa), Duebendorf, Switzerland. Publisher Copyright: © 2018 Elsevier Ltd
PY - 2018/12/15
Y1 - 2018/12/15
N2 - Carbon fiber-reinforced polymer (CFRP) composites have been increasingly used in the strengthening and rehabilitation of steel structures. This paper presents an analytical model for stiffness prediction of CFRP-to-steel double strap joints. Mechanical analysis was performed to determine the shear stress and strain distributions in the bond region, which resulted in deriving a model for stiffness prediction of joints. More than 20 test results from the existing works in the literature were used to validate the proposed model. Results show that the predictions are mostly between 0.8 and 1.2 times the experimental values, with an average error of less than 10%, which demonstrates the effectiveness of the proposed model. Finally, a parametric study with respect to the bond length and the adherend stiffness ratio was performed to give a better understanding of the effect of different parameters.
AB - Carbon fiber-reinforced polymer (CFRP) composites have been increasingly used in the strengthening and rehabilitation of steel structures. This paper presents an analytical model for stiffness prediction of CFRP-to-steel double strap joints. Mechanical analysis was performed to determine the shear stress and strain distributions in the bond region, which resulted in deriving a model for stiffness prediction of joints. More than 20 test results from the existing works in the literature were used to validate the proposed model. Results show that the predictions are mostly between 0.8 and 1.2 times the experimental values, with an average error of less than 10%, which demonstrates the effectiveness of the proposed model. Finally, a parametric study with respect to the bond length and the adherend stiffness ratio was performed to give a better understanding of the effect of different parameters.
KW - Bonded strengthening
KW - Carbon fiber-reinforced polymer (CFRP)
KW - Double strap joints
KW - Steel
KW - Stiffness prediction
UR - http://www.scopus.com/inward/record.url?scp=85054028411&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2018.09.024
DO - 10.1016/j.engstruct.2018.09.024
M3 - Article
AN - SCOPUS:85054028411
VL - 177
SP - 190
EP - 197
JO - Engineering structures
JF - Engineering structures
SN - 0141-0296
ER -