Commercial Aircraft Composite Technology


Book Description

This book is based on lectures held at the faculty of mechanical engineering at the Technical University of Kaiserslautern. The focus is on the central theme of societies overall aircraft requirements to specific material requirements and highlights the most important advantages and challenges of carbon fiber reinforced plastics (CFRP) compared to conventional materials. As it is fundamental to decide on the right material at the right place early on the main activities and milestones of the development and certification process and the systematic of defining clear requirements are discussed. The process of material qualification - verifying material requirements is explained in detail. All state-of-the-art composite manufacturing technologies are described, including changes and complemented by examples, and their improvement potential for future applications is discussed. Tangible case studies of high lift and wing structures emphasize the specific advantages and challenges of composite technology. Finally, latest R&D results are discussed, providing possible future solutions for key challenges such as low cost high performance materials, electrical function integration and morphing structures.




New Materials for Next-Generation Commercial Transports


Book Description

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.




Polymers and Other Advanced Materials


Book Description

Proceedings of the Third International Conference on Frontiers of Polymers and Advanced Materials held in Kuala Lumpur, Malaysia, January 16-20, 1995




Sandwich Structures 7: Advancing with Sandwich Structures and Materials


Book Description

Sandwich structures represent a special form of a laminated composite material or structural elements, where a relatively thick, lightweight and compliant core material separates thin stiff and strong face sheets. The faces are usually made of laminated polymeric based composite materials, and typically, the core can be a honeycomb type material, a polymeric foam or balsa wood. The faces and the core are joined by adhesive bonding, which ensures the load transfer between the sandwich constituent parts. The result is a special laminate with very high bending stiffness and strength to weight ratios. Sandwich structures are being used successfully for a variety of applications such as spacecraft, aircraft, train and car structures, wind turbine blades, boat/ship superstructures, boat/ship hulls and many others. The overall objective of the 7th International Conference on Sandwich Structures (ICSS-7) is to provide a forum for the presentation and discussion of the latest research and technology on all aspects of sandwich structures and materials, spanning the entire spectrum of research to applications in all the fields listed above.




Successful Composites Technology Transfer


Book Description

The ingenuity and visibility of NASA space programs, such as the max launch abort system (MLAs), are sparking the creativity, knowledge transfer, and unique applications of revolutionary technologies in areas such as aerospace, wind energy, transportation, oil, safety, and civil infrastructure. Lightweight, high-strength, carbon-fiber composites materials, vacuum-assisted resin transfer molding, smart sensors, out-of-autoclave curing of autoclave composites, unified structures, structural health monitoring systems, smart phone/RFID tracking, determinant assembly, forensic engineering, and the digital tapestry that ties everything together are just a few of the technological advances perfected in NASA’s programs. Successful composites technology transfer takes the discussion of these technologies to the next level — addressing the advantages and challenges to their more widespread industrial application. Readers will get insight into how high-strength, carbon-fiber composites and its related technologies are making inroads into products such as commercial airplane seats and carts, turbine blades, firefighting equipment, trucks, buses, lifting and support devices, and containers. The author shares breakthrough thinking on other potential applications, such as a new lighter than air ship, prototype vehicles, driver health and safety, firefighter safety, and bridge infrastructure safety and health monitoring. According to Foreword author, Tim Shinbara, vice president of manufacturing technology at AMT (Association for Manufacturing Technology), “...it is of considerable value to search out, discover, and digest resources such as this book in an effort to continually improve the lens by which we innovate.” Aside from new product innovations, extension of the manufacturing technologies, and processes described herein have the potential to not only add new functionality or modify the existing functionality of existing products and systems, but in many cases, adoption would require minimal effort from the manufacturing enterprise.




Aircraft Sustainment and Repair


Book Description

Aircraft Sustainment and Repair is a one-stop-shop for practitioners and researchers in the field of aircraft sustainment, adhesively bonded aircraft joints, bonded composites repairs, and the application of cold spray to military and civil aircraft. Outlining the state-of-the-art in aircraft sustainment, this book covers the use of quantitative fractography to determine the in-service crack length versus flight hours curve, the effect of intergranular cracking on structural integrity and the structural significance of corrosion. The book additionally illustrates the potential of composite repairs and SPD applications to metallic airframes. - Covers corrosion damage assessment and management in aircraft structures - Includes a key chapter on U.S. developments in the emerging field of supersonic particle deposition (SPD) - Shows how to design and assess the potential benefits of both bonded composite repairs and SPD repairs to metallic aircraft structures to meet the damage tolerance requirements inherent in FAA ac 20-107b and the U.S. Joint Services




Structural Health Monitoring of Aerospace Composites


Book Description

Structural Health Monitoring of Aerospace Composite Structures offers a comprehensive review of established and promising technologies under development in the emerging area of structural health monitoring (SHM) of aerospace composite structures. Beginning with a description of the different types of composite damage, which differ fundamentally from the damage states encountered in metallic airframes, the book moves on to describe the SHM methods and sensors currently under consideration before considering application examples related to specific composites, SHM sensors, and detection methods. Expert author Victor Giurgiutiu closes with a valuable discussion of the advantages and limitations of various sensors and methods, helping you to make informed choices in your structure research and development. - The first comprehensive review of one of the most ardent research areas in aerospace structures, providing breadth and detail to bring engineers and researchers up to speed on this rapidly developing field - Covers the main classes of SHM sensors, including fiber optic sensors, piezoelectric wafer active sensors, electrical properties sensors and conventional resistance strain gauges, and considers their applications and limitation - Includes details of active approaches, including acousto-ultrasonics, vibration, frequency transfer function, guided-wave tomography, phased arrays, and electrochemical impedance spectroscopy (ECIS), among other emerging methods




Manufacturing Technology for Aerospace Structural Materials


Book Description

The rapidly-expanding aerospace industry is a prime developer and user of advanced metallic and composite materials in its many products. This book concentrates on the manufacturing technology necessary to fabricate and assemble these materials into useful and effective structural components. Detailed chapters are dedicated to each key metal or alloy used in the industry, including aluminum, magnesium, beryllium, titanium, high strength steels, and superalloys. In addition the book deals with composites, adhesive bonding and presents the essentials of structural assembly. This book will be an important resource for all those involved in aerospace design and construction, materials science and engineering, as well as for metallurgists and those working in related sectors such as the automotive and mass transport industries. Flake Campbell Jr has over thirty seven years experience in the aerospace industry and is currently Senior Technical Fellow at the Boeing Phantom Works in Missouri, USA.* All major aerospace structural materials covered: metals and composites* Focus on details of manufacture and use* Author has huge experience in aerospace industry* A must-have book for materials engineers, design and structural engineers, metallurgical engineers and manufacturers for the aerospace industry







Scientific and Technical Aerospace Reports


Book Description

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.