NDLI: Design, fabrication and test of graphite/polyimide composite joints and attachments. [spacecraft control surfaces]

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Design, fabrication and test of graphite/polyimide composite joints and attachments. [spacecraft control surfaces]

Content Provider	NASA Technical Reports Server (NTRS)
Author	Ward, S. H. McCleskey, S. F. Cushman, J. B.
Copyright Year	1982
Description	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 561 K (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 at 589 K (600 F)) and thermal cycled (116 K to 589 K (-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 589 K (600 F) for 125 hours.
File Size	54881565
Page Count	310
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19830004180
Archival Resource Key	ark:/13960/t5p893v8v
Language	English
Publisher Date	1982-07-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Joints Junctions Metal Bonding Bolts Thermal Cycling Tests Adhesive Bonding Laminates Graphite-polyimide Composites Spacecraft Construction Materials Fatigue Tests Control Surfaces High Temperature Tests Spacecraft Structures Thermal Degradation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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