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Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling

This paper investigated the stress distribution of an adhesive layer for GFRP–steel bonded joints under 22.48 kN tensile loading using a three-dimensional numerical simulation. Firstly, a stress analysis of three paths was conducted, and after comparison, path II (through the middle layer of the bon...

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Detalles Bibliográficos
Autores principales: Liu, Jie, Yuan, Yu, Wang, Libin, Liu, Zhongxiang, Yang, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9654099/
https://www.ncbi.nlm.nih.gov/pubmed/36363376
http://dx.doi.org/10.3390/ma15217787
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author Liu, Jie
Yuan, Yu
Wang, Libin
Liu, Zhongxiang
Yang, Jun
author_facet Liu, Jie
Yuan, Yu
Wang, Libin
Liu, Zhongxiang
Yang, Jun
author_sort Liu, Jie
collection PubMed
description This paper investigated the stress distribution of an adhesive layer for GFRP–steel bonded joints under 22.48 kN tensile loading using a three-dimensional numerical simulation. Firstly, a stress analysis of three paths was conducted, and after comparison, path II (through the middle layer of the bonding layer) was adopted as the analyzing path. Furthermore, a systemically parametric study of the effects of the FRP stiffness (i.e., elastic modulus and thickness), bonding length, adhesive thickness, and adhesive modulus was conducted. For the joints with different FRP elastic moduli, the minimum value of normal peeling stress was calculated as −3.80 MPa by the FRP for 10 GPa, showing a significantly severe stress concentration of FRP for 10 GPa. An analysis of the von Mises stresses proved that the increase in FRP stiffness could reduce the stress concentration of the adhesive layer effectively. The study of the effect of bonding lengths indicated that a more uniform peeling stress distribution could result from the longest bonding size; the largest peeling stress of 6.54 MPa was calculated for a bonding length of 30 mm. Further parameter analysis showed that the stress concentration of the adhesive layer could be influenced by the FRP thickness, bonding thickness, and elastic modulus of the adhesive layer.
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spelling pubmed-96540992022-11-15 Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling Liu, Jie Yuan, Yu Wang, Libin Liu, Zhongxiang Yang, Jun Materials (Basel) Article This paper investigated the stress distribution of an adhesive layer for GFRP–steel bonded joints under 22.48 kN tensile loading using a three-dimensional numerical simulation. Firstly, a stress analysis of three paths was conducted, and after comparison, path II (through the middle layer of the bonding layer) was adopted as the analyzing path. Furthermore, a systemically parametric study of the effects of the FRP stiffness (i.e., elastic modulus and thickness), bonding length, adhesive thickness, and adhesive modulus was conducted. For the joints with different FRP elastic moduli, the minimum value of normal peeling stress was calculated as −3.80 MPa by the FRP for 10 GPa, showing a significantly severe stress concentration of FRP for 10 GPa. An analysis of the von Mises stresses proved that the increase in FRP stiffness could reduce the stress concentration of the adhesive layer effectively. The study of the effect of bonding lengths indicated that a more uniform peeling stress distribution could result from the longest bonding size; the largest peeling stress of 6.54 MPa was calculated for a bonding length of 30 mm. Further parameter analysis showed that the stress concentration of the adhesive layer could be influenced by the FRP thickness, bonding thickness, and elastic modulus of the adhesive layer. MDPI 2022-11-04 /pmc/articles/PMC9654099/ /pubmed/36363376 http://dx.doi.org/10.3390/ma15217787 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Jie
Yuan, Yu
Wang, Libin
Liu, Zhongxiang
Yang, Jun
Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling
title Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling
title_full Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling
title_fullStr Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling
title_full_unstemmed Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling
title_short Parameter Study of Interfacial Capacities for FRP–Steel Bonded Joints Based on 3D FE Modeling
title_sort parameter study of interfacial capacities for frp–steel bonded joints based on 3d fe modeling
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9654099/
https://www.ncbi.nlm.nih.gov/pubmed/36363376
http://dx.doi.org/10.3390/ma15217787
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