Download or read book Effects of Temperature on the Adhesive Bonding in Steel Beams Reinforced with CFRP Composites written by Ghayth Mohammed Hassein Abed and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Temperature on the Adhesive Bonding in Steel Beams Reinforced with CFRP Composites written by Ghayth Hassein Abed and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of carbon fibre reinforced polymer (CFRP) composites in strengthening and repairing steel beams and girders in existing structural bridges has become wide spread in recent years. Though the previous studies had showed significant improvement in the load carrying capacity and the fatigue life of the strengthened structures, they did not take into consideration the effects of extreme summer temperature on the behaviour of the reinforced structure because they were carried out at room temperature. The change of temperature affects the mechanical properties of the adhesive epoxy. Moreover, thermal stresses are induced in the adhesive bond due to the significant difference in the coefficients of thermal expansion between CFRP and steel materials. The main aspects investigated in this thesis are the changes in the adhesive mechanical properties due to the change in the temperature and the impact of these changes on the failure mechanism, the failure load, the fatigue life and the stresses distributions of steel beams strengthened with CFRP plates. In order to achieve the aims of the research, the following procedures are carried out: First, tensile tests on adhesive specimens were carried out at different temperatures to investigate adhesive properties temperature dependency. Second, static tests were conducted on both double-lap shear and three-point bending specimens at temperatures ranging between 20 to 60°C to examine the influence of temperature on the failure mechanism and the failure load. Third, an analytical model was developed to calculate the interfacial stresses in the reinforced beam by approximating the adhesive nonlinear behaviour at elevated temperatures with the elastic perfectly-plastic representation. Fourth, finite element analysis was conducted to validate the analytical results assuming bilinear elastic-plastic adhesive behaviour. Finally, fatigue tests were carried out on both double-lap shear and three-point bending specimens at different load and temperature ranges to identify their fatigue life temperature dependency. Adhesive materials showed significant reduction in the strength and the stiffness coupled with nonlinear behaviour as the temperature reaches the adhesive glass transition temperature (Tg). Thus, the failure load and fatigue life of the strengthened structures were reduced significantly at Tg with a change in the failure mechanism. Both the analytical and finite element results were capable of defining the length of the plastic zone occurring at the plate end due to the high shear stress concentration. The length of the plastic zone depends on several parameters, including the elastic modulus and the thickness of the CFRP plate, the applied load and the temperature. The study of these parameters shows that it is possible to avoid CFRP plate debonding at extreme temperature by using thinner and longer CFRP plates with high modulus instead ultra-high modulus.
Download or read book FRP written by J. G. Teng and published by John Wiley & Sons. This book was released on 2002 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre-reinforced polymer (FRP) composites are used to strengthen reinforced concrete (RC) structures. A large amount of research now exists on this. This book brings together all existing research into one volume.
Download or read book Rehabilitation of Metallic Civil Infrastructure Using Fiber Reinforced Polymer FRP Composites written by Vistasp M. Karbhari and published by Elsevier. This book was released on 2014-03-14 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced polymer (FRP) composites are becoming increasingly popular as a material for rehabilitating aging and damaged structures. Rehabilitation of Metallic Civil Infrastructure Using Fiber-Reinforced Polymer (FRP) Composites explores the use of fiber-reinforced composites for enhancing the stability and extending the life of metallic infrastructure such as bridges. Part I provides an overview of materials and repair, encompassing topics of joining steel to FRP composites, finite element modeling, and durability issues. Part II discusses the use of FRP composites to repair steel components, focusing on thin-walled (hollow) steel sections, steel tension members, and cracked aluminum components. Building on Part II, the third part of the book reviews the fatigue life of strengthened components. Finally, Part IV covers the use of FRP composites to rehabilitate different types of metallic infrastructure, with chapters on bridges, historical metallic structures and other types of metallic infrastructure. Rehabilitation of Metallic Civil Infrastructure Using Fiber-Reinforced Polymer (FRP) Composites represents a standard reference for engineers and designers in infrastructure and fiber-reinforced polymer areas and manufacturers in the infrastructure industry, as well as academics and researchers in the field. - Looks at the use of FRP composites to repair components such as hollow steel sections and steel tension members - Considers ways of assessing the durability and fatigue life of components - Reviews applications of FRP to infrastructure such as steel bridges
Download or read book Bond Behavior Between Steel and High Modulus CFRP Plates at Moderatley Elevated Temperatures written by Mehmet Ugur Sahin and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the findings of a research study that was conducted to assess the effect of moderately elevated temperatures, up to 50oC, on the bond behavior of steel beams strengthened with externally bonded carbon fiber reinforced polymer (CFRP) plates. In the first phase of the research, five steel-CFRP bonded double-lap shear coupons were tested at different temperatures to characterize the bond behavior. In the second phase of testing steel beams were strengthened with different configurations of high modulus CFRP plates and subjected to different combinations of applied load and ambient temperature. The temperature ranges considered were selected to represent typical environmental conditions experienced by many steel bridges and structures in different environments. The parameters that are considered in this study include the length of the CFRP plate and the combined effect of mechanical and thermal load.
Download or read book Rehabilitation of Metallic Structural Systems Using Fiber Reinforced Polymer FRP Composites written by Vistasp M. Karbhari and published by Elsevier. This book was released on 2024-09-12 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rehabilitation of Metallic Structural Systems Using Fiber-Reinforced Polymer (FRP) Composites, Second Edition provides comprehensive knowledge on the application of FRPs in various types of metallic field structures. Part I provides an overview of the various types of materials and systems and discusses the durability of bonds. Part II focuses on materials-level considerations, such as corrosion and mechanical behavior, putty effects on the effectiveness of pipeline systems, laser joining and the use of carbon and basalt FRP for underwater repair. Building on Part II, the final three sections focus on applications of FRP composites to steel components and various infrastructure systems. This book will be a standard reference for civil engineers, designers, materials scientists, and other professionals who are involved in the rehabilitation of metallic structures using fiber reinforced polymer composites. - Contains eighteen new chapters covering materials-level aspects and applications - Presents materials developments for tailored bonds, durability, and bond behavior - Includes methods of analysis, testing, and implementation across a broad range of sectors - Covers design aspects, guidelines, and codes - Discusses economic aspects and future prospects
Download or read book Advanced Composite Materials for Aerospace Engineering written by Sohel Rana and published by Woodhead Publishing. This book was released on 2016-04-26 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Composite Materials for Aerospace Engineering: Processing, Properties and Applications predominately focuses on the use of advanced composite materials in aerospace engineering. It discusses both the basic and advanced requirements of these materials for various applications in the aerospace sector, and includes discussions on all the main types of commercial composites that are reviewed and compared to those of metals. Various aspects, including the type of fibre, matrix, structure, properties, modeling, and testing are considered, as well as mechanical and structural behavior, along with recent developments. There are several new types of composite materials that have huge potential for various applications in the aerospace sector, including nanocomposites, multiscale and auxetic composites, and self-sensing and self-healing composites, each of which is discussed in detail. The book's main strength is its coverage of all aspects of the topics, including materials, design, processing, properties, modeling and applications for both existing commercial composites and those currently under research or development. Valuable case studies provide relevant examples of various product designs to enhance learning. - Contains contributions from leading experts in the field - Provides a comprehensive resource on the use of advanced composite materials in the aerospace industry - Discusses both existing commercial composite materials and those currently under research or development
Download or read book Advanced Composite Materials for Automotive Applications written by Ahmed Elmarakbi and published by John Wiley & Sons. This book was released on 2013-10-09 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: The automotive industry faces many challenges, including increased global competition, the need for higher-performance vehicles, a reduction in costs and tighter environmental and safety requirements. The materials used in automotive engineering play key roles in overcoming these issues: ultimately lighter materials mean lighter vehicles and lower emissions. Composites are being used increasingly in the automotive industry due to their strength, quality and light weight. Advanced Composite Materials for Automotive Applications: Structural Integrity and Crashworthiness provides a comprehensive explanation of how advanced composite materials, including FRPs, reinforced thermoplastics, carbon-based composites and many others, are designed, processed and utilized in vehicles. It includes technical explanations of composite materials in vehicle design and analysis and covers all phases of composite design, modelling, testing and failure analysis. It also sheds light on the performance of existing materials including carbon composites and future developments in automotive material technology which work towards reducing the weight of the vehicle structure. Key features: Chapters written by world-renowned authors and experts in their own fields Includes detailed case studies and examples covering all aspects of composite materials and their application in the automotive industries Unique topic integration between the impact, crash, failure, damage, analysis and modelling of composites Presents the state of the art in composite materials and their application in the automotive industry Integrates theory and practice in the fields of composite materials and automotive engineering Considers energy efficiency and environmental implications Advanced Composite Materials for Automotive Applications: Structural Integrity and Crashworthiness is a comprehensive reference for those working with composite materials in both academia and industry, and is also a useful source of information for those considering using composites in automotive applications in the future.
Download or read book Fire Properties of Polymer Composite Materials written by A. P. Mouritz and published by Springer Science & Business Media. This book was released on 2007-01-30 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first to deal with the important topic of the fire behaviour of fibre reinforced polymer composite materials. The book covers all of the key issues on the behaviour of composites in a fire. Also covered are fire protection materials for composites, fire properties of nanocomposites, fire safety regulations and standards, fire test methods, and health hazards from burning composites.
Download or read book Advances in FRP Composites in Civil Engineering written by Lieping Ye and published by Springer Science & Business Media. This book was released on 2012-02-01 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Advances in FRP Composites in Civil Engineering" contains the papers presented at the 5th International Conference on Fiber Reinforced Polymer (FRP) Composites in Civil Engineering in 2010, which is an official conference of the International Institute for FRP in Construction (IIFC). The book includes 7 keynote papers which are presented by top professors and engineers in the world and 203 papers covering a wide spectrum of topics. These important papers not only demonstrate the recent advances in the application of FRP composites in civil engineering, but also point to future research endeavors in this exciting area. Researchers and professionals in the field of civil engineering will find this book is exceedingly valuable. Prof. Lieping Ye and Dr. Peng Feng both work at the Department of Civil Engineering, Tsinghua University, China. Qingrui Yue is a Professor at China Metallurgical Group Corporation.
Download or read book Nonlinear Finite Element Analysis of Composite and Reinforced Concrete Beams written by Xiaoshan Lin and published by Woodhead Publishing. This book was released on 2019-10-18 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Finite Element Analysis of Composite and Reinforced Concrete Beams presents advanced methods and techniques for the analysis of composite and FRP reinforced concrete beams. The title introduces detailed numerical modeling methods and the modeling of the structural behavior of composite beams, including critical interfacial bond-slip behavior. It covers a new family of composite beam elements developed by the authors. Other sections cover nonlinear finite element analysis procedures and the numerical modeling techniques used in commercial finite element software that will be of particular interest to engineers and researchers executing numerical simulations. - Gives advanced methods and techniques for the analysis of composite and fiber Reinforced Plastic (FRP) and reinforced concrete beams - Presents new composite beam elements developed by the authors - Introduces numerical techniques for the development of effective finite element models using commercial software - Discusses the critical issues encountered in structural analysis - Maintains a clear focus on advanced numerical modeling
Download or read book Progress in Adhesion and Adhesives Volume 2 written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2017-06-23 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever-increasing amount of research being published it is a Herculean task to be fully conversant with the latest research developments in any field, and the arena of adhesion and adhesives is no exception. Thus, topical review articles provide an alternate and very efficient way to stay abreast of the state-of-the-art in may subjects representing the field of adhesion science and adheisves. Based on the success and the warm reception accorded to the premier volume in this series “Progress in Adhesion and Adhesives” (containing the review articles published in Volume 2 (2014) of the journal Reviews of Adhesion and Adhesives (RAA)), volume 2 comprises 14 review articles published in Volume 4 (2016) of RAA. The subjects of these 14 reviews fall into the following general areas: 1. Surface modification of polymers for a variety of purposes. 2. Adhesion aspects in reinforced composites 3. Thin films/coatings and their adhesion measurement 4. Bioadhesion and bio-implants 5. Adhesives and adhesive joints 6. General adhesion aspects The topics covered include: surface modification of natural fibers for reinforced polymer composites; adhesion of submicrometer thin metals films; surface treatments to modulate bioadhesion; hot-melt adhesives from renewable resources; particulate-polymer composites; functionally graded adhesively bonded joints; fabrication of nano-biodevices; effects of particulates on contact angles , thermal stresses in adhesively bonded joints and ways to mitigate these; laser-assisted electroless metallization of polymer materials; adhesion measurement of coatings on biodevices/implants; cyanoacrylate adhesives; and adhesion of green flame retardant coatings onto polyolefins.
Download or read book ICCS19 19th International Conference on Composite Structures written by Antonio J.M. Ferreira and published by Società Editrice Esculapio. This book was released on 2016-08-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, it is quite easy to see various applications of fibrous composites, functionally graded materials, laminated composite, nano-structured reinforcement, morphing composites, in many engineering fields, such as aerospace, mechanical, naval and civil engineering. The increase in the use of composite structures in different engineering practices justify the present international meeting where researches from every part of the globe can share and discuss the recent advancements regarding the use of standard structural components within advanced applications such as buckling, vibrations, repair, reinforcements, concrete, composite laminated materials and more recent metamaterials. For this reason, the establishment of this 19th edition of International Conference on Composite Structures has appeared appropriate to continue what has been begun during the previous editions. ICCS wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures, sandwich panels, nanotechnology, bio-composites, delamination and fracture, experimental methods, manufacturing and other countless topics that have filled many sessions during this conference. As a proof of this event, which has taken place in Porto (Portugal), selected plenary and keynote lectures have been collected in the present book.
Download or read book Joining Composites with Adhesives written by Magd Abdel Wahab and published by DEStech Publications, Inc. This book was released on 2015-10-05 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adhesive technologies for bonding composites to multiple materialsInformation on adhesive formulation, selection, joint configuration Presented in this volume is a detailed scientific analysis of strategies for adhering composite materials to plastics, concrete, metals, and wood, as well as to other composites, using a variety of adhesives. The theory and analysis of composite bonding with adhesives are explained, along with information on adhesive formulation and selection, material preparation, joint geometry and joint design. Attention is given to how different types of adhered composite joints are empirically tested, e.g., for strength and under stress, and how models of joints with adhesives are developed. The book includes an intensive discussion of the uses of adhesives for composite repair. Part two focuses on applications of adhesive composite bonding in aircraft, automobiles, buildings, ships, railroads and dental restoration.
Download or read book Integrity of the adhesive bonding in steel beams strengthened with a carbon fibre composite plate written by Jun Deng and published by . This book was released on 2005 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechcomp2 written by Antonio J.M. Ferreira and published by Società Editrice Esculapio. This book was released on 2016-05-20 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composites materials have aroused a great interest over the last few decades. Several applications of fibrous composites, functionally graded materials, laminated composites, nano-structured reinforcements, morphing structures, can be found in many engineering fields, such as aerospace, mechanical, naval and civil engineering. The necessity of lightweight structures, smart and adaptive systems, high-level strength, have led both the academic research and the manufacturing development to a recurring employment of these materials. Many journal papers and technical notes have been published extensively over the last seventy years in international scientific journals of different engineering fields. For this reason, the establishment of this second edition of Mechanics of Composites International Conference has appeared appropriate to continue what has been begun during the first edition occurred in 2014 at Stony Brook University (USA). MECHCOMP wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures. As a proof of this event, which has taken place in Porto (Portugal), selected plenary and key-note lectures have been collected in the present book.
Download or read book Fatigue and Fracture of Adhesively Bonded Composite Joints written by Anastasios P. Vassilopoulos and published by Elsevier. This book was released on 2014-10-21 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is commonly accepted that the majority of engineering failures happen due to fatigue or fracture phenomena. Adhesive bonding is a prevailing joining technique, widely used for critical connections in composite structures. However, the lack of knowledge regarding fatigue and fracture behaviour, and the shortage of tools for credible fatigue design, hinders the potential benefits of adhesively bonded joints. The demand for reliable and safe structures necessitates deep knowledge in this area in order to avoid catastrophic structural failures. This book reviews recent research in the field of fatigue and fracture of adhesively-bonded composite joints. The first part of the book discusses the experimental investigation of the reliability of adhesively-bonded composite joints, current research on understanding damage mechanisms, fatigue and fracture, durability and ageing as well as implications for design. The second part of the book covers the modelling of bond performance and failure mechanisms in different loading conditions. - A detailed reference work for researchers in aerospace and engineering - Expert coverage of different adhesively bonded composite joint structures - An overview of joint failure
