Download or read book Repair of Wooden Utility Poles Using Fibre reinforced Polymers written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: All wood utility poles require an effective maintenance program to ensure safe and reliable service. The end of a wood utility pole's useful life can be attributed to several factors including decay, mechanical damage, weathering and changing design circumstances that require the pole to be modified. Pole life can be extend through an effective preservative treatment and maintenance program, but at some point, all poles will reach a point when they are no longer suitable for their intend use. With the increasing cost of quality wood for use in poles, and the environmental concerns regarding pole disposal and chemical treatment of existing poles, new methods are required to restore and maintain wood poles. A research program was initiated at the University of Manitoba's Civil Engineering Composites Facility to develop a repair and restoration technique for wooden poles using fibre-reinforced polymers (FRP) to extend their useful life. Twenty-seven 3050-mm poles were tested as cantilevers under static loading. The experimental results showed that the repair techniques developed for restoring wood poles were successful in restoring fully the original installation strength. The program also included the development of finite element models used to predict the behavior of FRP-rehabilitated utility poles. Equations were also developed to assist in the design of the FRP-repair.

Download or read book Repair of Wooden Utility Poles Using Fibre reinforced Polymers written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Repair of Impact Damaged Utility Poles with Fiber Reinforced Polymers FRP Phase Two written by and published by . This book was released on 2015 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Impact Damage and Fiber Reinforced Polymer Repair Systems for Metallic Utility Poles written by Cara I. Johnson and published by . This book was released on 2013 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous studies have demonstrated that the behavior of fiber reinforced polymers (FRPs) bonded to metallic utility poles are governed by the following failure modes; yielding of the metallic substrate, FRP tensile rupture, FRP compressive buckling, and debonding of FRP from the substrate. Therefore, an in situ method can be devised for the repair of utility poles, light poles, and mast arms that returns the poles to their original service strength. This thesis investigates the effect of damage due to vehicular impact on metallic poles, and the effectiveness of externally-bonded FRP repair systems in restoring their capacity. Damage is simulated experimentally by rapid, localized load application to pole sections, creating dents ranging in depth from 5 to 45% of the outer diameter. Four FRP composite repair systems were selected for characterization and investigation due to their mechanical properties, ability to balance the system failure modes, and installation effectiveness. Bending tests are conducted on dented utility poles, both unrepaired and repaired. Nonlinear finite element models of dented and repaired pole bending behavior are developed in MSC. Marc. These models show good agreement with experimental results, and can be used to predict behavior of full-scale repair system. A relationship between dent depth and reduced pole capacity is developed, and FRP repair system recommendations are presented.

Download or read book Polymer Composites III 2004 written by Robert C. Creese and published by DEStech Publications, Inc. This book was released on 2004 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Composites Conference series is unique in its focus on practical, current applications of polymer composites in transportation infrastructure and military research.

Download or read book Canadian Journal of Civil Engineering written by and published by . This book was released on 2007 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developments in fiber reinforced polymer FRP composites for civil engineering written by R. Liang and published by Elsevier Inc. Chapters. This book was released on 2013-05-15 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This chapter presents dozens of select environmental engineering applications of fiber-reinforced polymer (FRP) composite materials with emphasis on their environmental benefits, followed by discussions on durability of composites. Significance of design codes and specifications in promoting and advancing the applications of FRP composites is addressed. With ever increasing attention toward a sustainable built environment, FRP composites have potential to be selected as a material of choice because of the performance and design advantages of FRPs.

Download or read book Developments in Fiber Reinforced Polymer FRP Composites for Civil Engineering written by Nasim Uddin and published by Elsevier. This book was released on 2013-05-15 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of fiber-reinforced polymer (FRP) composite materials has had a dramatic impact on civil engineering techniques over the past three decades. FRPs are an ideal material for structural applications where high strength-to-weight and stiffness-to-weight ratios are required. Developments in fiber-reinforced polymer (FRP) composites for civil engineering outlines the latest developments in fiber-reinforced polymer (FRP) composites and their applications in civil engineering. Part one outlines the general developments of fiber-reinforced polymer (FRP) use, reviewing recent advancements in the design and processing techniques of composite materials. Part two outlines particular types of fiber-reinforced polymers and covers their use in a wide range of civil engineering and structural applications, including their use in disaster-resistant buildings, strengthening steel structures and bridge superstructures. With its distinguished editor and international team of contributors, Developments in fiber-reinforced polymer (FRP) composites for civil engineering is an essential text for researchers and engineers in the field of civil engineering and industries such as bridge and building construction. Outlines the latest developments in fiber-reinforced polymer composites and their applications in civil engineering Reviews recent advancements in the design and processing techniques of composite materials Covers the use of particular types of fiber-reinforced polymers in a wide range of civil engineering and structural applications

Download or read book Thermoplastic Polymer Composites written by Sodagudi Francis Xavier and published by John Wiley & Sons. This book was released on 2022-12-01 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: THERMOPLASTIC POLYMER COMPOSITES The monograph represents a life-long career in industry and academia and creates an exhaustive and comprehensive narrative that gives a complete understanding of important and state-of-the-art aspects of polymer composites including processing, properties, performance, applications & recyclability. Based on 40 years’ experience in both industry and academia, the author’s goal is to make a comprehensive and up-to-date account that gives a complete understanding of various aspects of polymer composites covering processing, properties, performance, applications & recyclability. Divided into 8 main chapters, the book treats thermoplastics vs. thermosets and the processing of thermoplastics; filled polymer composites; short fiber reinforced composites; long fiber reinforced composites; continuous fiber reinforced composites; nanocomposites; applications; and recycling polymer composites. Readers can have confidence that: Thermoplastic Polymer Composites (TPC) gives a comprehensive understanding of polymer composites’ processing, properties, applications, and their recyclability; Provides a complete understanding of man-made as well as natural fiber reinforced polymer (FRP) composites and explores in depth how short fiber, long fiber, and continuous fiber can transform the entire domain of composites’ processing and properties; Provides a deep understanding of nanocomposites with more than 50 examples covering both commodities as well as engineering thermoplastics. It presents conducting composites and several bio-medical applications of composites that are already passed through laboratories. Audience This unique reference book will be of great value to researchers and postgraduate students in materials science, polymer science, as well industry engineers in plastics manufacturing. Those working in product development laboratories of polymer and allied industries will also find it helpful.

Download or read book Materials Design and Manufacturing for Sustainable Environment written by Santhakumar Mohan and published by Springer Nature. This book was released on 2021-02-06 with total page 909 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the select proceedings of the International Conference on Materials, Design and Manufacturing for Sustainable Environment (ICMDMSE 2020). The primary focus is on emerging materials and cutting-edge manufacturing technologies for sustainable environment. The book covers a wide range of topics such as advanced materials, vibration, tribology, finite element method (FEM), heat transfer, fluid mechanics, energy engineering, additive manufacturing, robotics and automation, automobile engineering, industry 4.0, MEMS and nanotechnology, optimization techniques, condition monitoring, and new paradigms in technology management. Contents of this book will be useful to students, researchers, and practitioners alike.

Download or read book Recommended Practice for Fiber reinforced Polymer Products for Overhead Utility Line Structures written by Task Committee on Fiber-reinforced Polymer Products for Overhead Utility Line Structures and published by . This book was released on 2019 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "MOP 104, Second Edition, provides updated best practices and design recommendations for the use of fiber-reinforced polymer (FRP) composite poles and cross-arms in conductor support applications"--

Download or read book Recommended Practice for Fiber Reinforced Polymer Products for Overhead Utility Line Structures written by and published by American Society of Civil Engineers. This book was released on 2003-10-01 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual details best practices for the use of fiber-reinforced polymer (FRP) products in conductor support applications and FRP poles. Advancements and innovations in FRP and process technologies have resulted in lightweight high-strength FRP materials that are more cost-competitive with traditional construction materials such as wood, steel, and prestressed concrete. In addition to a description of the advancements and innovations, the differences in performance between FRP structures and wood, steel, or prestressed concrete are also explained. FRP materials are used widely in many applications because they can be engineered to offer important advantages over traditional materials and also offer product engineers extraordinary design latitude. Engineers can choose from a wide range of material systems and processing techniques. FRP structures fall into one of five basic configurations: Cantilevered structures; Guyed structures; Framed structures; Combined structures; and Latticed tower structures. The manual recommends and provides suggested guidelines for Performance-Based Tests for all FRP poles. It also discusses factors that could affect the performance of FRP poles after installation, suggests field inspection methods, and provides basic maintenance and field repair techniques that can be used to extend the life of FRP poles: Environment, UV Radiation, Temperature, Moisture, Ice and Snow Accumulations, Fire, Chemical Exposure, Biodegradation, Mechanical Fatigue, and Electrical Stress and Leakage Current.

Download or read book Electricity Supply Systems of the Future written by Nikos Hatziargyriou and published by Springer Nature. This book was released on 2020-07-20 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a vision of the future of electricity supply systems and CIGRE’s views on the know-how that will be needed to manage the transition toward them. A variety of factors are driving a transition of electricity supply systems to new supply models, in particular the increasing use of renewable sources, environmental factors and developments in ICT technologies. These factors suggest that there are two possible models for power network development, and that those models are not necessarily exclusive: 1. An increasing importance of large networks for bulk transmission capable of interconnecting load regions and large centralized renewable generation resources, including offshore and of providing more interconnections between the various countries and energy markets. 2. An emergence of clusters of small, largely self-contained distribution networks, which include decentralized local generation, energy storage and active customer participation, intelligently managed so that they operate as active networks providing local active and reactive support. The electricity supply systems of the future will likely include a combination of the above two models, since additional bulk connections and active distribution networks are needed in order to reach ambitious environmental, economic and security-reliability targets. This concise yet comprehensive reference resource on technological developments for future electrical systems has been written and reviewed by experts and the Chairs of the sixteen Study Committees that form the Technical Council of CIGRE.

Download or read book Self Healing Composites written by Guoqiang Li and published by John Wiley & Sons. This book was released on 2014-09-23 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the self-healing of composite structures with shape memory polymer as either matrix or embedded suture is systematically discussed. Self-healing has been well known in biological systems for many years: a typical example is the self-healing of human skin. Whilst a minor wound can be self-closed by blood clotting, a deep and wide cut needs external help by suturing. Inspired by this observation, this book proposes a two-step close-then-heal (CTH) scheme for healing wide-opened cracks in composite structures–by constrained shape recovery first, followed by molecular healing. It is demonstrated that the CTH scheme can heal wide-opened structural cracks repeatedly, efficiently, timely, and molecularly. It is believed that self-healing represents the next-generation technology and will become an engineering reality in the near future. The book consists of both fundamental background and practical skills for implementing the CTH scheme, with additional focus on understanding strain memory versus stress memory and healing efficiency evaluation under various fracture modes. Potential applications to civil engineering structures, including sealant for bridge decks and concrete pavements, and rutting resistant asphalt pavements, are also explored. This book will help readers to understand this emerging field, and to establish a framework for new innovation in this direction. Key features: explores potential applications of shape memory polymers in civil engineering structures, which is believed to be unique within the literature balanced testing and mathematical modeling, useful for both academic researchers and practitioners the self-healing scheme is based on physical change of polymers and is written in an easy to understand style for engineering professionals without a strong background in chemistry

Download or read book Handbook of Adhesive Technology Revised and Expanded written by Antonio Pizzi and published by CRC Press. This book was released on 2003-08-06 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Adhesive Technology, Second Edition exceeds the ambition of its bestselling forerunner by reexamining the mechanisms driving adhesion, categories of adhesives, techniques for bond formation and evaluation, and major industrial applications. Integrating modern technological innovations into adhesive preparation and application, this greatly expanded and updated edition comprises a total of 26 different adhesive groupings, including three new classes. The second edition features ten new chapters, a 40-page list of resources on adhesives, and abundant figures, tables, equations.

Download or read book Applied Plastics Engineering Handbook written by Myer Kutz and published by Elsevier. This book was released on 2023-11-24 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied Plastics Engineering Handbook: Processing, Sustainability, Materials, and Applications, Third Edition presents the fundamentals of plastics engineering, helping bring readers up-to-speed on new plastics, materials, processing and technology. This revised and expanded edition includes the latest developments in plastics, including areas such as biodegradable and biobased plastics, plastic waste, smart polymers, and 3D printing. Sections cover traditional plastics, elastomeric materials, bio-based materials, additives, colorants, fillers and plastics processing, including various key technologies, plastic recycling and waste. The final part of the book examines design and applications, with substantial updates made to reflect advancements in technology, regulations, and commercialization. Throughout the handbook, the focus is on engineering aspects of producing and using plastics. Properties of plastics are explained, along with techniques for testing, measuring, enhancing, and analyzing them. Practical introductions to both core topics and new developments make this work equally valuable for newly qualified plastics engineers seeking the practical rules-of-thumb they don't teach you in school and experienced practitioners evaluating new technologies or getting up-to-speed in a new field. Offers an ideal reference for new engineers, experienced practitioners and researchers entering a new field or evaluating a new technology Provides an authoritative source of practical advice, presenting guidance that will lead to cost savings and process improvements Includes the latest technology, covering 3D printing, smart polymers and thorough coverage of biobased and biodegradable plastics

Download or read book Long Term Durability of Structural Materials written by P.J.M. Monteiro and published by Elsevier. This book was released on 2001-08-29 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Long Term Durability of Structural Materials" features proceedings of the workshop held at Berkeley, CA in October, 2000. It brought together engineers and scientists, who have received grants from the initiative NSF 98-42, to share their results on the study of long-term durability of materials and structures. The major objective was to develop new methods for accelerated short-term laboratory or in-situ tests which allow accurate, reliable, predictions of the long-term performance of materials, machines and structures. To achieve this goal it was important to understand the fundamental nature of the deterioration and damage processes in materials and to develop innovative ways to model the behavior of these processes as they affect the life and long-term performance of components, machines and structures. The researchers discussed their approach to include size effects in scaling up from laboratory specimens to actual structures. Accelerated testing and durability modeling techniques developed were validated by comparing their results with performance under actual operating conditions. The main mechanism of the deterioration discussed included environmental effects and/or exposure to loads, speeds and other operating conditions that are not fully anticipated in the original design. A broad range of deterioration damage, such as fatigue, overload, ultraviolet damage, corrosion, and wear was presented. A broad range of materials of interest was also discussed, including the full spectrum of construction materials, metals, ceramics, polymers, composites, and coatings. Emphasis was placed on scale-dependence and history of fabrication on resulting mechanical behavior of materials.