NASA Technical Reports Server (NTRS) : Design pdf

NASA Technical Reports Server (NTRS) : Design

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Description of the Book:

The design, analysis and testing performed to develop four types of graphite/polyimide (Gr/PI) bonded and bolted composite joints for lightly loaded control surfaces on advanced space transportation systems that operate at temperatures up to 561K (550 F) are summarized. Material properties and ‘small specimen’ tests were conducted to establish design data and to evaluate specific design details. ‘Static discriminator’ tests were conducted on preliminary designs to verify structural adequacy. Scaled up specimens of the final joint designs, representative of production size requirements, were subjected to a series of static and fatigue tests to evaluate joint strength. Effects of environmental conditioning were determined by testing aged (125 hours 589K (600 F)) and thermal cycled (116K to 589K (-250 F to 600 F), 125 times) specimens. It is concluded Gr/PI joints can be designed and fabricated to carry the specified loads. Test results also indicate a possible resin loss or degradation of laminates after exposure to 589K (600 F) for 125 hours

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 1/1/1983
• Year: 1983
• Book Topics/Themes: NASA Technical Reports Server (NTRS), BOLTS, CONTROL SURFACES, GRAPHITE-POLYIMIDE COMPOSITES, METAL BONDING, METAL JOINTS, SPACECRAFT CONSTRUCTION MATERIALS, FATIGUE TESTS, STATIC TESTS, THERMAL CYCLING TESTS, Cushman, J. B., Mccleskey, S. F., Ward, S. H

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