Details
| Original language | English |
|---|---|
| Article number | 112000 |
| Number of pages | 20 |
| Journal | Thin-walled structures |
| Volume | 201 |
| Early online date | 14 May 2024 |
| Publication status | Published - 1 Aug 2024 |
Abstract
This study reports the first experimental study on the in-plane bending stress concentration factor (SCF) of steel tubular T-joints with fibre-reinforced-polymer (FRP) jacketing. Experimental results showed that the SCF of the FRP-strengthened specimens was reduced by up to 35 %, thereby significantly improving the fatigue strength of the joints. A numerical model, validated with experimental data, was used to further investigate the SCF of FRP-strengthened joints with different geometric/mechanical properties. Nonlinear regression analysis was also performed using experimental and numerical data, and parametric formulas were proposed for the in-plane bending SCF of FRP-strengthened tubular steel joints.
Keywords
- Fatigue strengthening, Fibre reinforced polymer (FRP), In-plane bending, Stress concentration factor (SCF), Tubular joint
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Engineering(all)
- Mechanical Engineering
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In: Thin-walled structures, Vol. 201, 112000, 01.08.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental and numerical study on the in-plane bending behaviour of FRP-strengthened steel tubular welded T-joints
AU - Rashnooie, R.
AU - Zeinoddini, M.
AU - Ghafoori, E.
AU - Sharafi, M.
N1 - Publisher Copyright: © 2024 Elsevier Ltd
PY - 2024/8/1
Y1 - 2024/8/1
N2 - This study reports the first experimental study on the in-plane bending stress concentration factor (SCF) of steel tubular T-joints with fibre-reinforced-polymer (FRP) jacketing. Experimental results showed that the SCF of the FRP-strengthened specimens was reduced by up to 35 %, thereby significantly improving the fatigue strength of the joints. A numerical model, validated with experimental data, was used to further investigate the SCF of FRP-strengthened joints with different geometric/mechanical properties. Nonlinear regression analysis was also performed using experimental and numerical data, and parametric formulas were proposed for the in-plane bending SCF of FRP-strengthened tubular steel joints.
AB - This study reports the first experimental study on the in-plane bending stress concentration factor (SCF) of steel tubular T-joints with fibre-reinforced-polymer (FRP) jacketing. Experimental results showed that the SCF of the FRP-strengthened specimens was reduced by up to 35 %, thereby significantly improving the fatigue strength of the joints. A numerical model, validated with experimental data, was used to further investigate the SCF of FRP-strengthened joints with different geometric/mechanical properties. Nonlinear regression analysis was also performed using experimental and numerical data, and parametric formulas were proposed for the in-plane bending SCF of FRP-strengthened tubular steel joints.
KW - Fatigue strengthening
KW - Fibre reinforced polymer (FRP)
KW - In-plane bending
KW - Stress concentration factor (SCF)
KW - Tubular joint
UR - http://www.scopus.com/inward/record.url?scp=85193481927&partnerID=8YFLogxK
U2 - 10.1016/j.tws.2024.112000
DO - 10.1016/j.tws.2024.112000
M3 - Article
AN - SCOPUS:85193481927
VL - 201
JO - Thin-walled structures
JF - Thin-walled structures
SN - 0263-8231
M1 - 112000
ER -