Honeycomb Fastening,

Abstract

Attachment of honeycomb sandwich structure has been an important design consideration in the aerospace field since the early 50's when bonded sandwich was first used extensively as covering for the wings and tail of the supersonic B-58. Since then, virtually all military and an increasing number of commercial aircraft and space vehicles utilize honeycomb sandwich as primary structure. This paper illustrates the basic approaches to sandwich panel attachment and the variety of typical solutions. Successful honeycomb fastening design concepts from B-58. B-57F, and F-111 production programs at General Dynamics are illustrated. Sealing of sandwich joints for use as integral fuel tanks and application of specialty fasteners for honeycomb sandwich are discussed. Structural efficiency of 'fastened' stepped-down edge concepts versus full-depth panel edges is compared. A full-depth panel edge design with a stud and plug with spliceplate is currently an attractive design for fastening both metallic and composite-faced sandwich.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1970
Accession Number
ADA305407

Entities

People

  • C. H. Walker

Organizations

  • General Dynamics

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Adhesives
  • Aircrafts
  • Bonding
  • Composite Materials
  • Fabrication
  • Fasteners
  • Fuel Tanks
  • Graphitic Materials
  • Honeycomb Cores
  • Honeycomb Structures
  • Joints
  • Laminates
  • Manufacturing
  • Materials Processing
  • Sandwich Construction
  • Sandwich Panels
  • Spacecraft

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Materials Science and Engineering.
  • Systems Analysis and Design

Technology Areas

  • Hypersonics
  • Space