DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0839480
Title:
DEVELOPMENT OF THICK-WALL, FILAMENT-WOUND, HIGH-PRESSURE CONTAINERS
Descriptive Note:
Final technical rept. Jun 1966-Mar 1968
Corporate Author:
AEROJET-GENERAL CORP AZUSA CA ELECTRONICS DIV
Report Date:
1968-05-01
Pagination or Media Count:
157.0
Abstract:
Thick-wall, glass-filament-wound, high-pressure containers with thin- metal liners were investigated analytically and experimentally. An analysis adapting thin-wall theory to a multilayered thick-wall vessel was developed and programmed on the computer. Comparisons to select the most efficient configuration, and evaluation of materials and processing techniques preceded the sequential fabrication and testing of sixteen 12-in.-dia prototype vessels designed to operate at a working pressure of 15,000 psi. Results indicate that mismatch of strains, and relative movement between the rigid thick-metal boss and the overwrapped composite, caused strain magnification in the transition area between the boss and liner. This condition developed because of the need to maintain overall strain compatibility between the filaments and metal structure and was the principal factor contributing to premature vessel failure. Tests indicated that improvements in the structure could be achieved by a applying the fibers at high winding tensions, b increasing the payoff tape width, and c using glass-reinforcement tapes to optimize the contour. Studies were also conducted on improving the internal supporting mandrel material and increasing the adhesive bond strength between the liner and composite structure. Continued studies are recommended in these areas and in thick-wall composite structures with load-bearing, non-buckling liners.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
