Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints
This paper aims to numerically investigate the cyclic behavior of retrofitted and non-retrofitted circular hollow section (CHS) T-joints under axial loading. Different joints with varying ratios of brace to chord radius are studied. The effects of welding process on buckling instability of the joint...
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doaj-bea6ebc760bd4e0da32641a843a27e592021-02-01T00:00:42ZengMDPI AGMaterials1996-19442021-01-011464864810.3390/ma14030648Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS JointsMohammad Alembagheri0Maria Rashidi1Amin Yazdi2Bijan Samali3Centre for Infrastructure Engineering, School of Engineering, Western Sydney University, Penrith 2749, AustraliaCentre for Infrastructure Engineering, School of Engineering, Western Sydney University, Penrith 2749, AustraliaDepartment of Civil and Environmental Engineering, Amirkabir University of Technology, Tehran 11154585, IranCentre for Infrastructure Engineering, School of Engineering, Western Sydney University, Penrith 2749, AustraliaThis paper aims to numerically investigate the cyclic behavior of retrofitted and non-retrofitted circular hollow section (CHS) T-joints under axial loading. Different joints with varying ratios of brace to chord radius are studied. The effects of welding process on buckling instability of the joints in compression and the plastic failure in tension are considered. The finite element method is employed for numerical analysis, and the SAC protocol is considered as cyclic loading scheme. The CHS joints are retrofitted with different numbers of Fiber Reinforced Polymer (FRP) layers with varying orientation. The results show that the welding process significantly increases the plastic failure potential. The chord ovalization is the dominant common buckling mode under the compression load. However, it is possible to increase the energy dissipation of the joints by utilizing FRP composite through changing the buckling mode to the brace overall buckling.https://www.mdpi.com/1996-1944/14/3/648tubular T-jointsultimate strengthcyclic loadingweldingFRP strengtheningbuckling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mohammad Alembagheri Maria Rashidi Amin Yazdi Bijan Samali |
spellingShingle |
Mohammad Alembagheri Maria Rashidi Amin Yazdi Bijan Samali Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints Materials tubular T-joints ultimate strength cyclic loading welding FRP strengthening buckling |
author_facet |
Mohammad Alembagheri Maria Rashidi Amin Yazdi Bijan Samali |
author_sort |
Mohammad Alembagheri |
title |
Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints |
title_short |
Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints |
title_full |
Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints |
title_fullStr |
Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints |
title_full_unstemmed |
Numerical Analysis of Axial Cyclic Behavior of FRP Retrofitted CHS Joints |
title_sort |
numerical analysis of axial cyclic behavior of frp retrofitted chs joints |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-01-01 |
description |
This paper aims to numerically investigate the cyclic behavior of retrofitted and non-retrofitted circular hollow section (CHS) T-joints under axial loading. Different joints with varying ratios of brace to chord radius are studied. The effects of welding process on buckling instability of the joints in compression and the plastic failure in tension are considered. The finite element method is employed for numerical analysis, and the SAC protocol is considered as cyclic loading scheme. The CHS joints are retrofitted with different numbers of Fiber Reinforced Polymer (FRP) layers with varying orientation. The results show that the welding process significantly increases the plastic failure potential. The chord ovalization is the dominant common buckling mode under the compression load. However, it is possible to increase the energy dissipation of the joints by utilizing FRP composite through changing the buckling mode to the brace overall buckling. |
topic |
tubular T-joints ultimate strength cyclic loading welding FRP strengthening buckling |
url |
https://www.mdpi.com/1996-1944/14/3/648 |
work_keys_str_mv |
AT mohammadalembagheri numericalanalysisofaxialcyclicbehavioroffrpretrofittedchsjoints AT mariarashidi numericalanalysisofaxialcyclicbehavioroffrpretrofittedchsjoints AT aminyazdi numericalanalysisofaxialcyclicbehavioroffrpretrofittedchsjoints AT bijansamali numericalanalysisofaxialcyclicbehavioroffrpretrofittedchsjoints |
_version_ |
1724316009893986304 |