Download or read book Resin Film Infusion Process for Carbon Fiber Epoxy Composite Plates written by Arya Roessler and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon fiber reinforced plastics (CFRPs) have been heavily used in the aerospace industry the past few decades due to their high specific properties when compared to traditional metals. Structural aerospace parts are made from carbon fiber fabric pre-impregnated with a resin system (prepregs). Traditionally, consolidating the prepregs in autoclaves is the preferred method of manufacturing CFRPs for the aerospace industry because of the resulting high-quality parts. Recently, out-of-autoclave (OOA) prepregs have been pursued instead of autoclave prepregs that come with the high startup and operating costs. Producing CFRPs using OOA prepregs will reduce costs, but some challenges exist because only atmospheric pressure (101 kPa) is applied to the part while curing, resulting in potentially more voids. Advancements in the cure kinetics of resin systems have decreased the void content in CFRPs fabricated with OOA prepregs, allowing them to become useful for aerospace applications, but more studies are necessary to understand the epoxy infiltration behaviors during the OOA process, especially as nanofillers are added in the future. In this thesis, the benefits and challenges of fabricating CFRPs through the OOA process are investigated along with the main objective of developing an OOA/VBO process using B-staged epoxy layers. To achieve this objective, three research tasks were set forth. First, thermal analysis was conducted on the EPON 862/Epikure W (862/W) epoxy resin system using a differential scanning calorimetry (DSC) machine. Three experiments with sample masses of 4 -- 5 mg were conducted to determine the average total heat of reaction, H_r, of the 862/W resin system and the average glass transition temperature, T_g. The H_r was compared to the heat of reaction of an 862/W sample at 121°C to determine the predicted degree of cure. Second, using the evaluated curing behavior, a B-staging process was established for the 862/W epoxy resin system that effectively infiltrates dry carbon fabric layers, while remaining handleable. Different combinations of B-staged epoxy layers (1, 2 and 3 layers) and dry unidirectional carbon fabric (8, 16, and 24 layers) were cured through an OOA/VBO process to create carbon fiber reinforced plastic (CFRP) plates. By decreasing the B-staging curing time to 30 minutes at 121°C, adding a sealant tape edge dam to restrict lateral resin flow, and adding a vacuum compaction step to the OOA/VBO process steps, the B-staged epoxy layers effectively infiltrated the dry carbon fabric. Third, the prepared CFRP plates were tested for interlaminar shear strength (ILSS) through short beam shear (SBS) testing to evaluate the effectiveness of the OOA process with three B-staged epoxy layers. The average interlaminar shear strength (ILSS) of the OOA plate fabricated with three B-staged epoxy layers was 34.28 + 2.83 MPa according to the standard calculation formula in ASTM D2344, which was higher than that of a reference plate fabricated through the wet-layup process, 27.42 + 0.86 MPa. These seemingly low ILSS values were attributed to the atypical location of interlaminar failure along the stitching threads holding the dry unidirectional fibers together. The ILSS of the OOA plate was re-calculated based on the actual failure location as 27.02 + 2.45 MPa and the wet-layup plate as 20.39 + 6.09 MPa. The void volume fraction of the OOA plate manufactured using three B-staged epoxy layers was 1.20% compared with 5.30% for the plate fabricated with the wet-layup process. With the information provided by SBS testing and optical microscopy, the OOA plate provides evidence that the B-staging and OOA/VBO process stated in this thesis produces CFRPs with better results than the traditional wet-layup procedure. A 20% increase in ILSS and a 4.10% decrease in void content was observed for the OOA plates with B-staged epoxy layers when compared to a reference wet-layup plate. For future SBS tests, choosing a different unidirectional carbon fabric is necessary to limit the failure of the specimens at the locations of stitching. The B-staging and OOA/VBO process developed in this thesis will be useful in the next steps to integrate carbon nanotubes into CFRPs to increase their ILSS.

Download or read book Manufacturing Processes for Advanced Composites written by Flake C Campbell Jr and published by Elsevier. This book was released on 2003-12-18 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: • One of very few books available to cover this subject area. • A practical book with a wealth of detail.This book covers the major manufacturing processes for polymer matrix composites with an emphasis on continuous fibre-reinforced composites. It covers the major fabrication processes in detail.Very few books cover the details of fabrication and assembly processes for composites. This book is intended for the engineer who wants to learn more about composite processing: any one with some experience in composites should be able to read it. The author, who has 34 years experience in the aerospace industry, has intentionally left out mathematical models for processes so the book will be readable by the general engineer. It differs from other books on composites manufacturing in focussing almost solely on manufacturing processes, while not attempting to cover materials, test methods, mechanical properties and other areas of composites.

Download or read book SAMPE Symposium and Exhibition written by Linas Repecka and published by Taylor & Francis. This book was released on 2001 with total page 2637 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 8th EASN CEAS Workshop on Manufacturing for Growth and Innovation written by Konstantinos Kontis and published by MDPI. This book was released on 2019-09-27 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue contains selected papers from works presented at the 8th EASN–CEAS (European Aeronautics Science Network–Council of European Aerospace Societies) Workshop on Manufacturing for Growth and Innovation, which was held in Glasgow, UK, 4–7 September 2018. About 150 participants contributed to a high-level scientific gathering providing some of the latest research results on the topic, as well as some of the latest relevant technological advancements. Νine interesting articles, which cover a wide range of topics including characterization, analysis and design, as well as numerical simulation, are contained in this Special Issue.

Download or read book State of the Art of Degasification Techniques in the Shaping Processes of Composite Materials Prepared by Resin Infusion written by Myriam Andrea Tarazona Romero and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of composite materials has represented many advances in the naval, aeronautical and aerospace sector complying with specific properties that increase the strength of the material, depending on the application being used and the environmental conditions to which it is exposed. Composite materials as the constituted with carbon fiber reinforcements of epoxy type matrix, nowadays are used for the manufacture of components in the structure of the aircrafts for their reductions of weight and fuel in contrast to the common use of metallic alloys. Due to the importance of epoxy resin and its use in industrial processes will be considered object of study in this project. Despite of these advantages, other challenges to overcome are the development of cheaper production process and new techniques of processing to the manufacturing of components with structural functions; one of them is the resin infusion which is based on the impregnation of thin films of dry fabrics through resin, this technique uses vacuum pressure to drive resin into laminate. Materials are laid dry into the mold and the vacuum is applied before resin is introduced. This process improves the quality and strength of the laminate reinforcement (fiberglass) of the parts. During the resin impregnation process, the vacuum causes the nucleation and formation of air bubbles from gases dissolved in the resin. A degassing process prior to the infusion can be a solution to remove those undesirable effects in the resin. This explorative study has as aim the research about the state of art of the degasification techniques and collects the processes involved in the quality of the final result of the resin. Additionally, it gives the initial requirements to carry out a future experimental study. Technical requirements to the realization of the experiments such as equipment, materials and personnel involved will be evaluated. A solvent database as CES-EDUPACK 2012 of recognized prestige in industrial engineering and aeronautics field, also used in companies as Ferrari, Renault F1, Intel, NASA will be used in the selection criteria of the materials involved in the technical requirements.

Download or read book Resin Infusion Techonology written by Jorge Nasseh and published by Jorge Nasseh. This book was released on 2022-03-31 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book composite materials students, engineers and scientists will find practical and technical information about the Resin Infusion Process to build extremely quality parts in advanced composite materials.

Download or read book New Materials for Next Generation Commercial Transports written by Committee on New Materials for Advanced Civil Aircraft and published by National Academies Press. This book was released on 1996-03-29 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major objective of this book was to identify issues related to the introduction of new materials and the effects that advanced materials will have on the durability and technical risk of future civil aircraft throughout their service life. The committee investigated the new materials and structural concepts that are likely to be incorporated into next generation commercial aircraft and the factors influencing application decisions. Based on these predictions, the committee attempted to identify the design, characterization, monitoring, and maintenance issues that are critical for the introduction of advanced materials and structural concepts into future aircraft.

Download or read book Manufacturing Techniques for Polymer Matrix Composites PMCs written by Suresh G Advani and published by Elsevier. This book was released on 2012-07-18 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer matrix composites are used extensively across a wide range of industries, making the design and development of effective manufacturing processes of great importance. Manufacturing techniques for polymer matrix composites (PMCs) provides an authoritative review of the different technologies employed in the manufacture of this class of composite.Following an introduction to composites and manufacturing processes, part one reviews the manufacturing of short fiber and nanoparticle based polymer matrix composites, with injection and compression molding examined in depth. Thermoplastic processing is the focus of part two. Sheet forming, fabric thermostamping, filament winding and continuous fiber reinforced profiles are investigated. Part three reviews thermoset processing. A survey of resin transfer molding follows, including vacuum-assisted and compression resin transfer molding. The pultrusion process is then considered, before the book concludes with an investigation into autoclave and out-of-autoclave curing processes in polymer matrix composites.With its distinguished editors and international team of expert contributors, Manufacturing techniques for polymer matrix composites (PMCs) is an essential guide for engineers and scientists working in the field of polymer matrix composites. - Provides an authoritative review of the different technologies employed in the manufacture of polymer matrix composites - Reviews the manufacturing of short fiber and nanoparticle-based polymer matrix composites, with injection and compression molding examined in depth - Examines thermoplastic processing, sheet forming, fabric thermostamping, filament winding and continuous fiber reinforced profiles

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterisation of an Out of autoclave Resin Film Infusion Process for Textile Composites written by Claudia Garschke and published by . This book was released on 2011 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method to manufacture damage tolerant textile composites, which combines Resin Film Infusion with a fast and cost·efficient curing technology QuickstepTM, was investigated. The effect of process parameters on resin flow through carbon fibre preforms was analysed and model-based parameter optimisation resulted in considerable improvement of resin flow properties.

Download or read book Recent Developments in the Field of Carbon Fibers written by Rita Khanna and published by BoD – Books on Demand. This book was released on 2018-07-25 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon fibres are lightweight, chemically stable materials with high mechanical strength, and have state-of-the-art applications in aerospace, marine, construction and automotive sectors. The demand for carbon fibre?based components is expected to grow dramatically with expanding opportunities for lightweight metals and composites. Although this field has achieved a high level of maturity, nanoscale developments in carbon fibres have seen dramatic improvements in the functions of conventional biomaterials and composites. This book reveals several new developments in the field to enhance characteristics of carbon fibres and their composites, novel applications for tissue engineering, biological scaffoldings and implants, recycling and reuse of end-of-life CFRP and manufacturing waste and other issues of concern in the field of carbon fibres.

Download or read book Design and Manufacture of Textile Composites written by A C Long and published by CRC Press. This book was released on 2006-01-05 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Textile composites encompass a rather narrow range of materials, based on three-dimensional reinforcements produced using specialist equipment. This book describes the design, manufacture and applications of textile composites. The intention is to describe the broad range of polymer composite materials with textile reinforcements, from woven and non-crimp commodity fabrics to 3-D textiles and their applications. The book gives particular attention to the modelling of textile structures, composites manufacturing methods, and subsequent component performance. This practical book is an invaluable guide for manufacturers of polymer composite components, end-users and designers, structural materials researchers, and textile manufacturers involved in the development of new products with textile composites.

Download or read book Polymer Matrix Composites and Technology written by Ru-Min Wang and published by Elsevier. This book was released on 2011-07-14 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given such properties as low density and high strength, polymer matrix composites have become a widely used material in the aerospace and other industries. Polymer matrix composites and technology provides a helpful overview of these materials, their processing and performance.After an introductory chapter, part one reviews the main reinforcement and matrix materials used as well as the nature of the interface between them. Part two discusses forming and molding technologies for polymer matrix composites. The final part of the book covers key aspects of performance, including tensile, compression, shear and bending properties as well as impact, fatigue and creep behaviour.Polymer matrix composites and technology provides both students and those in industry with a valuable introduction to and overview of this important class of materials. - Provides a helpful overview of these materials, their processing and performance incorporating naming and classification of composite materials - Reviews the main reinforcement and matrix materials used as well as the nature of the interface between them including damage mechanisms - Discusses forming and molding technologies for polymer matrix composites outlining various techniques and technologies

Download or read book Liquid Moulding Technologies written by C D Rudd and published by Elsevier. This book was released on 1997-01-01 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid moulding technologies such as RTM and SRIM are increasingly used for manufacturing composites in a variety of industries. Most interest stems from the automotive industry in the continuing search for weight savings, manufacturing economies and vehicle refinement.Liquid Moulding Technologies provides a unique insight into the development and use of such processes with a comprehensive description of the material, process variants, equipment, control strategies and tooling techniques used. Procedures for materials characterisation, preform and mould design are also described and the text is augmented by a number of case studies for prototype and production parts.This book is an invaluable source for both industrial moulders and those working in research and development.

Download or read book Composites Manufacturing written by Sanjay Mazumdar and published by CRC Press. This book was released on 2001-12-27 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: More and more companies manufacture reinforced composite products. To meet the market need, researchers and industries are developing manufacturing methods without a reference that thoroughly covers the manufacturing guidelines. Composites Manufacturing: Materials, Product, and Process Engineering fills this void. The author presents a fundamental

Download or read book Polymer Composites for Electrical Engineering written by Xingyi Huang and published by John Wiley & Sons. This book was released on 2021-11-01 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the diverse electrical engineering application of polymer composite materials with this in-depth collection edited by leaders in the field Polymer Composites for Electrical Engineering delivers a comprehensive exploration of the fundamental principles, state-of-the-art research, and future challenges of polymer composites. Written from the perspective of electrical engineering applications, like electrical and thermal energy storage, high temperature applications, fire retardance, power cables, electric stress control, and others, the book covers all major application branches of these widely used materials. Rather than focus on polymer composite materials themselves, the distinguished editors have chosen to collect contributions from industry leaders in the area of real and practical electrical engineering applications of polymer composites. The books relevance will only increase as advanced polymer composites receive more attention and interest in the area of advanced electronic devices and electric power equipment. Unique amongst its peers, Polymer Composites for Electrical Engineering offers readers a collection of practical and insightful materials that will be of great interest to both academic and industrial audiences. Those resources include: A comprehensive discussion of glass fiber reinforced polymer composites for power equipment, including GIS, bushing, transformers, and more) Explorations of polymer composites for capacitors, outdoor insulation, electric stress control, power cable insulation, electrical and thermal energy storage, and high temperature applications A treatment of semi-conductive polymer composites for power cables In-depth analysis of fire-retardant polymer composites for electrical engineering An examination of polymer composite conductors Perfect for postgraduate students and researchers working in the fields of electrical, electronic, and polymer engineering, Polymer Composites for Electrical Engineering will also earn a place in the libraries of those working in the areas of composite materials, energy science and technology, and nanotechnology.

Download or read book Heat Transfer in Polymer Composite Materials written by Nicolas Boyard and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.