Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.6
5.0
Journals
Polymers
Special Issues
Structural Application of Fiber Reinforced Polymer Composites
share announcement

Structural Application of Fiber Reinforced Polymer Composites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 30 May 2024 | Viewed by 5938

Special Issue Editors

Prof. Dr. Yang Wei

E-Mail Website
Guest Editor
College of Civil Engineering, Nanjing Forestry University, Nanjing, China
Interests: concrete structures; composite structures; wood structures; FRP reinforced structures; bamboo structures; structural retrofitting
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Junjie Zeng

E-Mail Website
Guest Editor
School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 523083, China
Interests: smart building materials; sustainable and low-carbon building materials; recycled building materials; innovative building materials life cycle impact analysis; structural deterioration; novel repair methods; eco-friendly retrofitting methods; novel fiber-reinforced polymer (FRP) structures; ultra-high performance concrete
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xin Wang

E-Mail Website
Guest Editor
School of Civil Engineering, Southeast University, Nanjing 210096, China
Interests: finite element analysis; construction materials; structural analysis; composite structures; hybrid materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yanlei Wang

E-Mail Website
Guest Editor
School of Civil Engineering, Dalian University of Technology, Dalian, China
Interests: fiber reinforced polymer; hybrid FRP-concrete-steel structures; durability of FRP materials; smart composite materials and structures
Dr. Pengda Li

E-Mail Website
Guest Editor
College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, China
Interests: composite structure; FRP confined concrete; FRP repairing or retrofitting; LRS (large rupture strain)–FRP; stress–strain behavior; bond–slip relationship; durability
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This century has seen the widespread application of fiber-reinforced polymer (FRP) composites in infrastructure. These composites have been developed into various products over the past 20 years due to their excellent corrosion resistance, designability, and high strength to weight ratio. A series of novel structures have been developed by combining traditional concrete materials or other emerging materials with FRP. These novel structures have also aroused widespread interest in the academic community. In order to safely and reasonably apply FRP composites to structures, it is necessary to establish accurate and effective theories to estimate the mechanical properties and sustainable design methods for these novel structures.

The Special Issue aims to introduce the latest research progress and technological innovation regarding FRP composite materials in structural applications, and also focuses on material innovation of polymers, structural analysis, and application research related to FRP composites. Research from experimental analysis and numerical simulation for the design of novel FRP materials/structures is welcomed, as well as that on the maintenance and renovation of existing structures. Topics of interest include (but are not limited to):

  • The properties of various FRP products;
  • FRP-retrofitted structures;
  • The bonding behaviors of FRP composites;
  • Polymer concrete;
  • Fiber-reinforced concrete;
  • Hybrid structures of FRP and steel/bamboo/wood;
  • FRP in combination with nontraditional cementitious materials.

Prof. Dr. Yang Wei
Prof. Dr. Junjie Zeng
Prof. Dr. Xin Wang
Prof. Dr. Yanlei Wang
Dr. Pengda Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • FRP
  • polymer concrete
  • fiber-reinforced concrete
  • mechanical behavior
  • durability
  • FRP retrofitting
  • composite structure
  • hybrid structures

Published Papers (4 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

16 pages, 8096 KiB  
Article
Influences of Fiber Volume Content on the Mechanical Properties of 2D Plain Carbon-Fiber Woven Composite Materials
by Jingliang Gong, Nouman Saeed, Xigui Huang, Weiwei Tian, Lixiao Li and Jian Song
Polymers 2024, 16(1), 108; https://doi.org/10.3390/polym16010108 - 29 Dec 2023
Viewed by 952
Abstract
The influence of fiber volume content on the mechanical properties of two-dimensional (2D) plain carbon-fiber woven composites is a crucial concern that necessitates immediate attention for large-scale applications in wind turbine blades. In this study, various mechanical tests were conducted on 2D plain [...] Read more.
The influence of fiber volume content on the mechanical properties of two-dimensional (2D) plain carbon-fiber woven composites is a crucial concern that necessitates immediate attention for large-scale applications in wind turbine blades. In this study, various mechanical tests were conducted on 2D plain carbon-fiber woven composites with different fiber volume contents, and the influences of fiber volume content on the mechanical properties and failure mode of the composite material were analyzed. Using carbon fiber as reinforcement and epoxy resin as a matrix, three types of plates with fiber volume contents of 47%, 50% and 53% were fabricated by using autoclave technology. The tensile, compression and interlaminar shear tests of the two-dimensional woven composites were carried out using MTS series testing machines. The influences of fiber volume content on tensile strength and modulus, compressive strength and modulus, interlaminar shear strength and shear strain energy were investigated. Additionally, the progressive damage development of these two-dimensional woven composites under different stress states was studied using scanning electron microscopy (SEM). The results indicate that the tensile strength and compressive strength increase almost linearly with the increase in fiber volume content, while the interlaminar shear strength increases slowly at low fiber volume content and rapidly at high fiber volume content. The tensile modulus of elasticity slightly increases as the fiber volume content increases, whereas the compressive modulus remains stable at low fiber volume content but gradually decreases at high fiber volume content. With the increase in fiber volume content, the shear strain energy of the specimen increases significantly. Full article
(This article belongs to the Special Issue Structural Application of Fiber Reinforced Polymer Composites)
►▼ Show Figures

Graphical abstract

15 pages, 4007 KiB  
Article
Woven Carbon-Fiber-Reinforced Polymer Tubular Mesh Reinforcement of Hollow High-Performance Concrete Beams
by Jakub Řepka, Tomáš Vlach, Jakub Hájek, Richard Fürst, Jan Pošta and Petr Hájek
Polymers 2023, 15(14), 3089; https://doi.org/10.3390/polym15143089 - 19 Jul 2023
Viewed by 1026
Abstract
This article presents woven carbon-fiber-reinforced polymer (CFRP) tubular mesh used as a reinforcement on the inner surface of hollow beams made of high-performance concrete (HPC). The tubular mesh was designed to serve as both the tensile and shear reinforcement of hollow beams intended [...] Read more.
This article presents woven carbon-fiber-reinforced polymer (CFRP) tubular mesh used as a reinforcement on the inner surface of hollow beams made of high-performance concrete (HPC). The tubular mesh was designed to serve as both the tensile and shear reinforcement of hollow beams intended for the construction of small self-supporting structures that could be assembled without mechanization. The reinforcement was prepared with a tri-axial weaving machine from carbon filament yarn and was homogenized using epoxy resin. The interaction of the composite reinforcement with the cementitious matrix was investigated, and the surface of the reinforcement was modified using silica sand and polyvinyl alcohol (PVA) fibers to improve cohesion. The sand coating enhanced bond strength, resulting in the significantly higher flexural strength of the hollow beam of 128%. The PVA fibers had a lower positive effect of 64% on the flexural strength but improved the ductility of the beam. Individual beams were connected by gluing steel parts directly inside the hollow core of the HPC beam. This procedure provides good interaction between the CFRP reinforcement and the glued steel insert and allows for the fast and simple assembly of structures. The weaving of additional layers of the CFRP reinforcement around HPC beams was also explored. A small structure made of the hollow HPC beams with inner composite reinforcement was constructed to demonstrate the possibilities of the presented technology. Full article
(This article belongs to the Special Issue Structural Application of Fiber Reinforced Polymer Composites)
►▼ Show Figures

Figure 1

20 pages, 4173 KiB  
Article
Investigation of the Shear Behavior of Concrete Beams Reinforced with FRP Rebars and Stirrups Using ANN Hybridized with Genetic Algorithm
by Bo Di, Renyuan Qin, Yu Zheng and Jiamei Lv
Polymers 2023, 15(13), 2857; https://doi.org/10.3390/polym15132857 - 28 Jun 2023
Cited by 2 | Viewed by 992
Abstract
The shear strength prediction of concrete beams reinforced with FRP rebars and stirrups is one of the most complicated issues in structural engineering applications. Numerous experimental and theoretical studies have been conducted to establish a relationship between the shear capacity and the design [...] Read more.
The shear strength prediction of concrete beams reinforced with FRP rebars and stirrups is one of the most complicated issues in structural engineering applications. Numerous experimental and theoretical studies have been conducted to establish a relationship between the shear capacity and the design variables. However, existing semi-empirical models fail to deliver precise predictions due to the intricate nature of shear mechanisms. To provide a more accurate and reliable model, machine learning (ML) techniques are adopted to study the shear behavior of concrete beams reinforced with FRP rebars and stirrups. A database consisting of 120 tested specimens is compiled from the reported literature. An artificial neural network (ANN) and a combination of ANN with a genetic optimization algorithm (GA-ANN) are implemented for the development of an ML model. Through neural interpretation diagrams (NID), the critical design factors, i.e., beam width and effective depth, shear span-to-depth ratio, compressive strength of concrete, FRP longitudinal reinforcement ratio, FRP shear reinforcement ratio, and elastic modulus of FRP longitudinal reinforcement rebars and FRP stirrups, are identified and determined as input parameters of the models. The accuracy of the proposed models has been verified by comparing the model predictions with the available test results. The application of the GA-ANN model provides better statistical results (mean value Vexp/Vpre equal to 0.99, R2 of 0.91, and RMSE of 22.6 kN) and outperforms CSA S806-12 predictions by improving the R2 value by 18.2% and the RMSE value by 52.5%. Furthermore, special attention is paid to the coupling effects of design parameters on shear capacity, which has not been reasonably considered in the models in the literature and available design guidelines. Finally, an ML-regression equation considering the coupling effects is developed based on the data-driven regression analysis method. The analytical results revealed that the prediction agrees with the test results with reasonable accuracy, and the model can be effectively applied in the prediction of shear capacity of concrete beams reinforced with FRP bars and stirrups. Full article
(This article belongs to the Special Issue Structural Application of Fiber Reinforced Polymer Composites)
►▼ Show Figures

Figure 1

Review

Jump to: Research

49 pages, 6386 KiB  
Review
Advancements in Fiber-Reinforced Polymer Composites: A Comprehensive Analysis
by Alin Diniță, Razvan George Ripeanu, Costin Nicolae Ilincă, Diana Cursaru, Dănuța Matei, Ramadan Ibrahim Naim, Maria Tănase and Alexandra Ileana Portoacă
Polymers 2024, 16(1), 2; https://doi.org/10.3390/polym16010002 - 19 Dec 2023
Cited by 2 | Viewed by 2365
Abstract
Composites made from fiber-reinforced polymers (FRPs) are a crucial and highly adaptable category of materials widely utilized in numerous fields. Their flexibility and the range of criteria for classification enable the creation of tailored solutions to address distinct requirements in sectors such as [...] Read more.
Composites made from fiber-reinforced polymers (FRPs) are a crucial and highly adaptable category of materials widely utilized in numerous fields. Their flexibility and the range of criteria for classification enable the creation of tailored solutions to address distinct requirements in sectors such as civil engineering, aerospace, automotive, and marine, among others. The distinguishing characteristics of FRP composites include the type of reinforcing fiber used, the composition of the matrix material, the employed manufacturing process, the orientation of the fibers, and the specific end-use application. These classification variables offer engineers a versatile structure to determine and select the most appropriate materials and production techniques for their specific needs. Furthermore, the present study aims to reunite the criteria of classification for FRPs and specific manufacturing technologies of FRPs, such as conventional ones (matched die molding, contact molding), automated ones (filament winding, tape lay-up, and fiber placement), and advanced ones (electrospinning and additive manufacturing),with the chronological development of FRPs, insights on material characteristics, and comprehensive design guidelines based on their behavior in different environments of use. Full article
(This article belongs to the Special Issue Structural Application of Fiber Reinforced Polymer Composites)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-4
Back to TopTop