Method for reinforcing threads in multilayer composite tubes and cylindrical structures

G. R. Romanoski, T. D. Burchell

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

Multilayer techniques such as: tape wrapping, braiding, and filament winding represent versatile and economical routes for fabricating composite tubes and cylindrical structures. However, multilayer architectures lack the radial reinforcement required to retain threads when the desired means of connection or closure is a threaded joint. This issue was addressed in the development of a filament wound, carbon-carbon composite impact shell for the NASA radioisotope thermoelectric generator. The problem of poor thread shear strength was solved by incorporating a number of radial elements of triangular geometry around the circumference of the thread for the full length of thread engagement. The radial elements significantly increased the shear strength of the threaded joint by transmitting the applied force to the balance of composite structure. This approach is also applicable to ceramic composites.

Original languageEnglish
Pages (from-to)90-97
Number of pages8
JournalCeramic Engineering and Science Proceedings
Volume17
Issue number4
DOIs
StatePublished - 1996
EventProceedings of the 1996 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B - Cocoa Beach, FL, USA
Duration: Jan 7 1996Jan 11 1996

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