The synthesis, kinetics and mechanical properties of unique resin systems for use in structural composites is reported. The general class of resins studied is acetylene terminated oligomers, designated ATX. Applying an ideal processing window analysis technique expedites the processing of materials for mechanical testing. A new method for determining a real processing window has been perfected and applied to systems having very fast cure reaction times. Mechanical relaxation spectra determination to better correlate material structure with mechanical properties is considered. An extension of composite concepts - blending a rigid rod polymer with its flexible coil analog - has yielded molecular composites with excellent properties. The preliminary synthesis, morphology, and mechanical properties of the pure rigid rod polymeric material (films and fibers) and the molecular composites (cast ad precipitated films) are presented.

This book offers a comprehensive look at materials science topics in aerospace, air vehicle structures and manufacturing methods for aerospace products, examining recent trends and new technological developments. Coverage includes additive manufacturing, advanced material removal operations, novel wing systems, design of landing gear, eco-friendly aero-engines, and light alloys, advanced polymers, composite materials and smart materials for structural components. Case studies and coverage of practical applications demonstrate how these technologies are being successfully deployed. Materials, Structures & Manufacturing for Aircraft will appeal to a broad readership in the aviation community, including students, engineers, scientists, and researchers, as a reference source for material science and modern production techniques.

This book discusses polymeric and composite materials for aerospace industries and discusses some general qualities of aviation materials, e.g., strength, density, malleability, ductility, elasticity, toughness, brittleness, fusibility, conductivity, and thermal expansion. Metals and alloys have so far been best able to utilize their qualities almost to the maximum. The latest advancements in polymers and composites have opened up a new area of conjecture about how to modify airplanes and shuttles to be more polymeric and less metallic. Polymeric materials have been the focus of exploration due to their high strength-to-weight ratio, low cost, and a greater degree of freedom in strengthening the needed qualities. Strength, density, malleability, ductility, elasticity, toughness, brittleness, fusibility, conductivity, and thermal expansion are some of the general qualities of aviation materials that are taken into account. Aerospace Polymeric Materials discusses a wide range of methods with an outline of polymeric and composite materials for aerospace applications. Among the range of topics discussed are aerogel properties; polymeric welding; polymeric reinforcement, their properties, and manufacturing; conducting polymer composites; electroactive polymeric composites; and polymer nanocomposite dielectrics. In addition, a summary of self-healing materials is also presented, including their significance, manufacturing methods, properties, and applications. Audience This is a useful guide for engineers, materials scientists, researchers, and postgraduate students from industry, academia, and laboratories that are linked to polymeric composites.

Sustainable Composites for Aerospace Applications presents innovative advances in the fabrication, characterization and applications of LDH polymer nanocomposites. It covers fundamental structural and chemical knowledge and explores various properties and characterization techniques, including microscopic, spectroscopic and mechanical behaviors. Users will find a strong focus on the potential applications of LDH polymer nanocomposites, such as in energy, electronics, electromagnetic shielding, biomedical, agricultural, food packaging and water purification functions. This book provides comprehensive coverage of cutting-edge research in the field of LDH polymer nanocomposites and future applications, and is an essential read for all academics, researchers, engineers and students working in this area. - Presents fundamental knowledge of LDH polymer nanocomposites, including chemical composition, structural features and fabrication techniques - Provides an analytical overview of the different types of characterization techniques and technologies - Contains extensive reviews on cutting-edge research for future applications in a variety of industries

The results of an assessment of the state-of-the-art in the design and manufacturing of large composite structures are described. The focus of the assessment is on the use of polymeric matrix composite materials for large airframe structural components, such as those in commercial and military aircraft and space transportation vehicles. Applications of composite materials for large commercial transport aircraft, general aviation aircraft, rotorcraft, military aircraft, and unmanned rocket launch vehicles are reviewed. The results of the assessment of the state-of-the-art include a summary of lessons learned, examples of current practice, and an assessment of advanced technologies under development.