High Performance Synthetic Fibers for Composites by National Research Council, Division on Engineering and

By National Research Council, Division on Engineering and Physical Sciences, National Materials Advisory Board, Commission on Engineering and Technical Systems, Committee on High Performance Synthetic Fibers for Composites

Excessive functionality man made fibers are key elements of composite fabrics - a category of fabrics very important for U.S. army know-how and for the civilian economic system. This publication addresses the foremost study and improvement possibilities for current and destiny structural composite purposes, and identifies steps which may be taken to speed up the commercialization of this serious fiber expertise within the usa. The e-book stresses the necessity for remodeling college curricula to mirror the interdisciplinary nature of fiber technology and know-how. It additionally urges a lot better govt and cooperation in aid of educational guideline and learn and improvement in fiber-related disciplines.

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Additional info for High Performance Synthetic Fibers for Composites (Publication (National Research Council (U.S.)), No. 458.)

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Norton,7 the improved strength and stiffness properties of fiber-reinforced polymers allow rotational components fabricated from these materials to operate much faster than those of steel alloys. Finally, unlike conventional materials, it is relatively simple to incorporate sensors and optical fibers into fiber-reinforced composites to monitor applied loads and detect damage, creating "smart" structures. In summary, some of the specific advantages of fiber-reinforced composites are as follows: • Higher specific modulus and strength values • Lighter weight • Controllable ("tailorable") properties Toughness Electrical and thermal conductivities Thermal expansion Stiffness • Resistance to corrosion • Better resistance to creep at high temperatures • Substitution for critical or strategic materials • Creation of multipurpose or "smart" structures The recently published Handbook on Composites8 is an important reference for current information on composites and basic materials used in composites, including fibers and fiber properties useful in the design or development of composites.

These markets include general industrial (in addition to the current EMI/RFI applications), automotive, and civil engineering. Within these markets, there is a whole host of applications for which PMCs, based on today's technology, meet the critical technical requirements of the application. Examples of the broad range of applications would include robotics, ropes and cables, heat exchangers, bridge decking, and reinforced concrete. The key to increased consumption in these diverse end uses is reduced raw material costs and improved fabrication technology; with current raw material costs (fibers are a key component of the cost) and relatively long fabrication cycles, the PMC use is limited at best.

Html HIGH-PERFORMANCE FIBER MATERIALS: APPLICATIONS, NEEDS AND OPPORTUNITIES 26 However, with respect to applications development, Western Europe has taken a more aggressive posture toward aircraft structure and Japan has been more proactive in the area of nonaerospace industrial parts. Examples of the latter include robotics and mechanical tools. Since the market situation for carbon fibers is more highly developed and much more competitive (at least in the United States) than any other class of high-performance fibers, a detailed discussion seems warranted.

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