Accession Number : AD0815611

Title :   THE DESIGN, FABRICATION, EXPANSION, AND RIGIDIZATION OF MODEL AND FULL-SIZE SPACE-TYPE CYLINDER STRUCTURES.

Descriptive Note : Final rept. 1 Dec 64-29 Mar 66,

Corporate Author : SCHJELDAHL (G T) CO NORTHFIELD MN

Personal Author(s) : Rochan, Ronald ; Neaman, Raymond G.

Report Date : OCT 1966

Pagination or Media Count : 143

Abstract : A 10- by 25-foot expandable, fiber-reinforced plastic, cylindrical aerospace vehicle was designed and developed under this study. The basic elements of the structure consisted of an expandable cylinder, which was a composite of a number of materials, and two rigid, fiber-reinforced bulkheads which also served as packaging canisters prior to deployment. The cylinder composite consisted of an elastomeric-coated, fabric bladder for internal pressure retention, a flexible foam buffering layer, a fluted core, fiberglass-reinforced plastic sandwich element, and an outer covering similar to the internal bladder layer. This program included adhesive studies, with special emphasis on the fabrication of materials, a study to define the rigidization parameters of the plastic resin system, micrometeoroid impact studies, fabrication and structural design studies of the fiber-reinforced plastic composite, and one-sixth size experimental model studies. Four one-sixth size models of the structure and a 10- by 25-foot structure were fabricated, resin-impregnated, packaged, and deployed, in a space vacuum simulation chamber. This study demonstrated that large structures of this nature can be fabricated, packaged, and rigidized. (Author)

Descriptors :   *EXPANDABLE STRUCTURES), (*AEROSPACE CRAFT, (*REINFORCED PLASTICS, AEROSPACE CRAFT), INFLATABLE STRUCTURES, CYLINDRICAL BODIES, COMPOSITE MATERIALS, SANDWICH CONSTRUCTION, GLASS TEXTILES, REINFORCING MATERIALS, ELASTOMERS, RUBBER COATINGS, ADHESIVES, PLASTICS, IMPREGNATION, METEORS, IMPACT TESTS, MODEL TESTS, SPACE SIMULATION CHAMBERS, MANUFACTURING.

Subject Categories : Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE