Evaluation of Energy Absorption of New Concepts of Aircraft Composite Subfloor Intersections.

Abstract

Forty-one composite specimens of aircraft subfloor intersections were tested to determine the effects of geometry and material on the energy absorbing behavior, failure characteristics, and postcrush structural integrity of the specimens. The intersections were constructed of 12-ply (+ OR - 456) laminates of either Kevlar 49/934 or AS-4/934 graphite epoxy in heights of 4, 8, and 12 in. The geometry of the specimens varied in the designs of the intersection attachment angle. Four different geometries were tested.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA309964

Entities

People

  • Huey D. Carden
  • Lisa E. Jones

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Absorption
  • Aircraft Equipment
  • Aircrafts
  • Attachment
  • Buckling
  • Composite Aircraft
  • Composite Materials
  • Computer Programs
  • Computers
  • Delamination
  • Energy
  • Failure Mode And Effect Analysis
  • Graphitic Materials
  • Laminates
  • Materials
  • Structural Components
  • Structural Integrity

Readers

  • Aerospace Test and Evaluation
  • Quantum Chemistry
  • Reinforced Composite Materials