DESIGN, FABRICATION AND TEST OF GRAPHITE/POLYIMIDE COMPOSITE JOINTS AND ATTACHMENTS.

被引：0

作者：

Cushman, J.B.

McCleskey, S.F.

Ward, S.H.

机构：

来源：

| 1983年

关键词：

GRAPHITE; -; Fibers; PLASTICS; REINFORCED; SPACECRAFT; Materials;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This report summarizes 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 degree F). 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 and thermal cycled 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 degree F) for 125 hours.

引用