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  • 1
    Publication Date: 2005-11-27
    Description: NASA structural design criteria development and specific problem areas requiring more study
    Keywords: SPACE VEHICLES
    Type: SPACE TRANSPORTATION SYSTEM TECHNOL. SYMP., VOL. 3 JUL. 1970; P 17-32
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  • 2
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    In:  Other Sources
    Publication Date: 2011-08-16
    Description: Light weight, low cost, ablative thermal protection system for space shuttles
    Keywords: SPACE VEHICLES
    Type: NASA SPACE SHUTTLE TECHNOL. CONF., VOL. 2 APR. 1971; P 163-194
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  • 3
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    In:  Other Sources
    Publication Date: 2011-08-18
    Description: In late 1975, the Aircraft Energy Efficiency (ACEE) program was initiated by NASA in order to accelerate the development of selected technologies which showed promise for substantial improvements in the fuel efficiency of commercial transport aircraft. A description is presented of the status of the composite structure development programs which form one of the six sections of the ACEE program. Six aircraft components are currently being developed under NASA contract by three major transport manufacturers. The components include the upper aft rudder of the Douglas DC-10, the inboard ailerons of the Lockheed L-1011, the elevators of the Boeing 727, the vertical stabilizers for the Lockheed L-1011 and Douglas DC-10, and the horizontal stabilizers of the Boeing 737. It is found that the composite components show a high potential for achieving cost comparability with the metal parts they are designed to replace.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
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  • 4
    Publication Date: 2016-06-07
    Description: A review was given of the development of composites for aircraft. Supporting base technology and the Aircraft Energy Efficiency Composites Program are included. Specific topics discussed include: (1) environmental effects on materials; (2) material quality and chemical characterization; (3) design and analysis methods; (4) structural durability; (5) impact sensitivity; (6) carbon fiber electrical effects; and (7) composite components.
    Keywords: COMPOSITE MATERIALS
    Type: CTOL Transport Technol., 1978; p 235-237
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  • 5
    Publication Date: 2016-03-09
    Description: The present volume broadly considers topics in composite fracture toughness and impact behavior characterization, composite system constituent properties and their interrelationships, and matrix systems' synthesis and characterization. Attention is given to the characterization of interlaminar crack growth in composites by means of the double cantilever beam specimen, the characterization of delamination resistance in toughened resin composites, the effect of impact damage and open holes on the compressive strength of tough resin/high strain fiber laminates, the effect of matrix and fiber properties on compression failure mechanisms and impact resistance, the relation of toughened neat resin properties to advanced composite mechanical properties, and constituent and composite properties' relationships in thermosetting matrices. Also treated are the effect of cross-link density on the toughening mechanism of elastomer-modified epoxies, the chemistry of fiber/resin interfaces, novel carbon fibers and their properties, the development of a heterogeneous laminating resin, solvent-resistant thermoplastics, NASA Lewis research in advanced composites, and opportunities for the application of composites in commercial aircraft transport structures.
    Keywords: COMPOSITE MATERIALS
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  • 6
    Publication Date: 2019-05-11
    Description: Aerodynamic heating tests of missile stabilizers in free jet at supersonic speeds
    Keywords: AUXILIARY SYSTEMS
    Type: NASA-TM-X-299
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  • 7
    Publication Date: 2019-05-24
    Description: Vibration tests of pressurized thin walled cylindrical shells
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-TN-D-3066
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  • 8
    Publication Date: 2019-06-27
    Description: The development of graphite-epoxy composite structures for use on commercial transport aircraft is considered. Six components, three secondary structures, and three primary structures, are presently under development. The six components are described along with some of the key features of the composite designs and their projected weight savings.
    Keywords: COMPOSITE MATERIALS
    Type: NASA-TM-78730
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  • 9
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    In:  CASI
    Publication Date: 2019-07-13
    Description: Ablative heat shield materials for Mars atmosphere entry evaluated for RF transmission loss and flexibility
    Keywords: MATERIALS, NONMETALLIC
    Type: NASA-TM-X-60531 , INTERN. SYMP. ON HIGH TEMP. TECHNOL.; Sep 17, 1967 - Sep 20, 1967; PACIFIC GROVE, CA; UNITED STATES
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  • 10
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    In:  Other Sources
    Publication Date: 2019-07-13
    Description: Ablation, transmission transparency and embrittlement of heat shield materials for Voyager tested under simulated Mars entry conditions
    Keywords: SPACE VEHICLES
    Type: HIGH TEMPERATURE TECHNOLOGY, THIRD INTERNATIONAL SYMPOSIUM; Sep 17, 1967 - Sep 20, 1967; PACIFIC GROVE, CA
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