Accession Number : ADD017880

Title :   Method of Making a Lattice Core Sandwich Construction.

Descriptive Note : Patent, Filed 19 Jul 94, patented 12 Dec 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Ray, Hemen ; Gause, Lee W

Report Date : 12 Dec 1995

Pagination or Media Count : 6

Abstract : A novel form of sandwich construction is disclosed. The lattice core sandwich construction comprises of elongate lattice cells in side-by-side abutment, to present common, lengthwise flat sides that have facesheets co-cured thereto without any secondary bonding. Each lattice cell is formed by wrapping, in alterate patterns, fiber-reinforced, composite bands around commonly-shaped mandrels. Oppositely disposed face sheets are placed against flat sides and the construction co-cured. After co-curing, the mandrels are removed.

Descriptors :   *COMPOSITE MATERIALS, *PLASTICS, *SANDWICH CONSTRUCTION, *PATENTS, DEGRADATION, FIBER REINFORCED COMPOSITES, MOISTURE CONTENT, HIGH STRENGTH, CURING, STRENGTH WEIGHT RATIO, ELONGATION, HONEYCOMB CORES, MANDRELS, STRUCTURAL INTEGRITY

Subject Categories : Laminates and Composite Materials
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE