A study of the Structural Stability of an Unbalanced Sandwich Composite Configuration

Abstract

An unbalanced, sandwich composite structure consisting of TI 6AL-4V and GRP (Glass Reinforced Plastic) skins with a phenolic honeycomb core is being considered for construction of a surface ship mast which will enclose critical shipboard equipment. Stability of the structure is one of the major concerns in the design process. This research focuses on analytical and experimental studies of an unbalanced composite sandwich beam subject to a compressive axial load. The limit load of each skin material separately, and two failure modes of the sandwich construction (general buckling and core shearing), are measured in the laboratory. An analytical model is developed for predicting the limit load of the unbalanced, sandwich composite configuration.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1993
Accession Number
ADA272496

Entities

People

  • Mary C. Murphy

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Engineered Resilient Systems
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • California
  • Composite Materials
  • Engineering
  • Failure Mode And Effect Analysis
  • Honeycomb Cores
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mechanical Engineering
  • Mechanics
  • Modulus Of Elasticity
  • Reinforced Plastics
  • Sandwich Composites
  • Sandwich Construction
  • United States

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Electrical Engineering
  • Mechanical Engineering/Mechanics of Materials.